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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1904.04379 | Steven Carlip | S. Carlip | Dimension and Dimensional Reduction in Quantum Gravity | For proceedings of the conference in honor of Martin Reuter: "Quantum
Fields---From Fundamental Concepts to Phenomenological Questions"; 14 pages;
based in part on my review article arXiv:1705.05417 | Universe 5 (2019) 83 | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | If gravity is asymptotically safe, operators will exhibit anomalous scaling
at the ultraviolet fixed point in a way that makes the theory effectively
two-dimensional. A number of independent lines of evidence, based on different
approaches to quantization, indicate a similar short-distance dimensional
reduction. I wi... | [
{
"created": "Mon, 8 Apr 2019 22:06:10 GMT",
"version": "v1"
}
] | 2019-04-10 | [
[
"Carlip",
"S.",
""
]
] | If gravity is asymptotically safe, operators will exhibit anomalous scaling at the ultraviolet fixed point in a way that makes the theory effectively two-dimensional. A number of independent lines of evidence, based on different approaches to quantization, indicate a similar short-distance dimensional reduction. I will... |
gr-qc/9604023 | null | F.I. Mikhail, M.I. Wanas, and G.G.L. Nashed | Cosmological Application of the New General Relativity | 14 pages, LaTeX, 5 tables; published in Astrophy. and Space Sci | Astrophys.Space Sci. 228 (1996) 255 | 10.1007/BF00984979 | null | gr-qc | null | The field equations of the new general relativity constructed by Hayashi and
Shirafuji (1979), have been applied to two different geometric structures,
given by Robertson (1932), in the domain of cosmology. In the first application
a family of models, involving two of the parameters characterizing the field
equations... | [
{
"created": "Wed, 10 Apr 1996 10:07:03 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Mikhail",
"F. I.",
""
],
[
"Wanas",
"M. I.",
""
],
[
"Nashed",
"G. G. L.",
""
]
] | The field equations of the new general relativity constructed by Hayashi and Shirafuji (1979), have been applied to two different geometric structures, given by Robertson (1932), in the domain of cosmology. In the first application a family of models, involving two of the parameters characterizing the field equations o... |
1612.04889 | Bob Holdom | Bob Holdom and Jing Ren | Not quite a black hole | 35 pages, 11 figures, added section IIID: A brick wall and entropy | Phys. Rev. D 95, 084034 (2017) | 10.1103/PhysRevD.95.084034 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Astrophysical black hole candidates, although long thought to have a horizon,
could be horizonless ultra-compact objects. This intriguing possibility is
motivated by the black hole information paradox and a plausible fundamental
connection with quantum gravity. Asymptotically free quadratic gravity is
considered here... | [
{
"created": "Thu, 15 Dec 2016 00:15:06 GMT",
"version": "v1"
},
{
"created": "Fri, 13 Jan 2017 19:31:47 GMT",
"version": "v2"
}
] | 2017-04-26 | [
[
"Holdom",
"Bob",
""
],
[
"Ren",
"Jing",
""
]
] | Astrophysical black hole candidates, although long thought to have a horizon, could be horizonless ultra-compact objects. This intriguing possibility is motivated by the black hole information paradox and a plausible fundamental connection with quantum gravity. Asymptotically free quadratic gravity is considered here a... |
gr-qc/9707016 | Eue Jin Jeong | Eue Jin Jeong | An Isolated Gravitational Dipole Moment Placed at The Center of the Two
Mass Pole Model Universe | 13 pages, Latex, 1 figure | null | null | null | gr-qc | null | The unexpected dynamic shift of the center of mass for a rotating hemisphere
is shown to produce the general relativistic dipole field in the macroscopic
scale. This prompts us the question of what might be its cosmological
implications. The uniformly rotating sphere has the effect of the latitude
dependent mass dens... | [
{
"created": "Mon, 7 Jul 1997 20:51:52 GMT",
"version": "v1"
},
{
"created": "Tue, 8 Jul 1997 02:18:56 GMT",
"version": "v2"
}
] | 2008-02-03 | [
[
"Jeong",
"Eue Jin",
""
]
] | The unexpected dynamic shift of the center of mass for a rotating hemisphere is shown to produce the general relativistic dipole field in the macroscopic scale. This prompts us the question of what might be its cosmological implications. The uniformly rotating sphere has the effect of the latitude dependent mass densit... |
1010.0062 | Carlos F. Sopuerta | Carlos F. Sopuerta and Nicolas Yunes | Testing Modified Gravity with Gravitational Wave Astronomy | 10 pages, 2 figures, Springer Verlag LaTeX style. To appear in the
proceedings of Cosmology, the Quantum Vacuum, and Zeta Functions: A workshop
with a celebration of Emilio Elizalde's sixtieth birthday, Bellaterra,
Barcelona, Spain, 8-10 Mar 2010. Eds. S. D. Odintsov, D. Saez-Gomez, and S.
Xambo | null | 10.1007/978-3-642-19760-4_26 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The emergent area of gravitational wave astronomy promises to provide
revolutionary discoveries in the areas of astrophysics, cosmology, and
fundamental physics. One of the most exciting possibilities is to use
gravitational-wave observations to test alternative theories of gravity. In
this contribution we describe h... | [
{
"created": "Fri, 1 Oct 2010 04:46:27 GMT",
"version": "v1"
}
] | 2015-05-20 | [
[
"Sopuerta",
"Carlos F.",
""
],
[
"Yunes",
"Nicolas",
""
]
] | The emergent area of gravitational wave astronomy promises to provide revolutionary discoveries in the areas of astrophysics, cosmology, and fundamental physics. One of the most exciting possibilities is to use gravitational-wave observations to test alternative theories of gravity. In this contribution we describe how... |
2201.02765 | Mohsen Khodadi | Mohsen Khodadi | Magnetic Reconnection and Energy Extraction from a Spinning Black Hole
with Broken Lorentz Symmetry | 20 pages, 10 figures, to appear in PRD | Phys. Rev. D 105, 023025 (2022) | 10.1103/PhysRevD.105.023025 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the Penrose process and the Blandford-Znajek mechanism, the rotational
energy of a black hole (BH) is extracted via particle fission and magnetic
tension, respectively. Recently, inspired by a fundamental trait in plasma
astrophysics known as magnetic reconnection (MR), a new energy extraction
mechanism based on t... | [
{
"created": "Sat, 8 Jan 2022 05:38:18 GMT",
"version": "v1"
},
{
"created": "Mon, 24 Jan 2022 17:09:08 GMT",
"version": "v2"
}
] | 2022-01-25 | [
[
"Khodadi",
"Mohsen",
""
]
] | In the Penrose process and the Blandford-Znajek mechanism, the rotational energy of a black hole (BH) is extracted via particle fission and magnetic tension, respectively. Recently, inspired by a fundamental trait in plasma astrophysics known as magnetic reconnection (MR), a new energy extraction mechanism based on the... |
0810.5262 | Sergey S. Kokarev | Sergey S. Kokarev | Fall of an Elastic Bar in Central Gravitational Field: I. Newtonian
Gravity | Part of talk on XIII Russian GR conference, June 2008, to be
published in Nuovo Cimento B | Nuovo Cim.B124:155-168,2009 | 10.1393/ncb/i2009-10753-3 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Within some reasonable approximations we calculate deformation of an elastic
bar, falling on the source of central gravitational field. We consider both
elastic deformations and plastic flow together with destroying of the bar.
Concrete calculations for a number of materials are presented.
| [
{
"created": "Wed, 29 Oct 2008 12:50:21 GMT",
"version": "v1"
},
{
"created": "Sat, 16 May 2009 13:07:24 GMT",
"version": "v2"
}
] | 2019-11-06 | [
[
"Kokarev",
"Sergey S.",
""
]
] | Within some reasonable approximations we calculate deformation of an elastic bar, falling on the source of central gravitational field. We consider both elastic deformations and plastic flow together with destroying of the bar. Concrete calculations for a number of materials are presented. |
2407.10469 | Andrea Pierfrancesco Sanna | Mariano Cadoni, Mirko Pitzalis and Andrea P. Sanna | Nucleation of de Sitter from the anti de Sitter spacetime in scalar
field models | 7 pages, 1 figure | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | We show that, in the framework of Einstein-scalar gravity, the de Sitter (dS)
spacetime can be nucleated out of the anti de Sitter (AdS) one. This is done by
using a scalar lump solution, which has an $\text{AdS}_4$ spacetime in the
core, allows for $\text{dS}_4$ vacua and was found to be plagued by tachyonic
instabi... | [
{
"created": "Mon, 15 Jul 2024 06:52:54 GMT",
"version": "v1"
}
] | 2024-07-16 | [
[
"Cadoni",
"Mariano",
""
],
[
"Pitzalis",
"Mirko",
""
],
[
"Sanna",
"Andrea P.",
""
]
] | We show that, in the framework of Einstein-scalar gravity, the de Sitter (dS) spacetime can be nucleated out of the anti de Sitter (AdS) one. This is done by using a scalar lump solution, which has an $\text{AdS}_4$ spacetime in the core, allows for $\text{dS}_4$ vacua and was found to be plagued by tachyonic instabili... |
1302.2794 | Branko Dragovich | I. Dimitrijevic, B. Dragovich, J. Grujic and Z. Rakic | New Cosmological Solutions in Nonlocal Modified Gravity | 12 pages | Rom. Journ. Phys. 58 (5-6), 550-559 (2013) | null | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider some cosmological aspects of nonlocal modified gravity with
$\Lambda$ term, where nonlocality is of the type $R \mathcal{F}(\Box) R$. Using
ansatz of the form $\Box R = r R +s,$ we find a few a(t) nonsingular bounce
cosmological solutions for all three values of spatial curvature parameter k.
We also disc... | [
{
"created": "Mon, 11 Feb 2013 18:08:44 GMT",
"version": "v1"
}
] | 2015-08-20 | [
[
"Dimitrijevic",
"I.",
""
],
[
"Dragovich",
"B.",
""
],
[
"Grujic",
"J.",
""
],
[
"Rakic",
"Z.",
""
]
] | We consider some cosmological aspects of nonlocal modified gravity with $\Lambda$ term, where nonlocality is of the type $R \mathcal{F}(\Box) R$. Using ansatz of the form $\Box R = r R +s,$ we find a few a(t) nonsingular bounce cosmological solutions for all three values of spatial curvature parameter k. We also discus... |
1302.5951 | Jonathan Luk | Sergiu Klainerman, Jonathan Luk, Igor Rodnianski | A fully anisotropic mechanism for formation of trapped surfaces in
vacuum | null | null | 10.1007/s00222-013-0496-6 | null | gr-qc math-ph math.AP math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a new, fully anisotropic, criterion for formation of trapped
surfaces in vacuum. More precisely we provide conditions on null data,
concentrated in a neighborhood of a short null geodesic segment (possibly flat
everywhere else) whose future development contains a trapped surface. This
extends considerably ... | [
{
"created": "Sun, 24 Feb 2013 20:42:02 GMT",
"version": "v1"
},
{
"created": "Fri, 27 Dec 2013 17:38:19 GMT",
"version": "v2"
}
] | 2017-08-02 | [
[
"Klainerman",
"Sergiu",
""
],
[
"Luk",
"Jonathan",
""
],
[
"Rodnianski",
"Igor",
""
]
] | We present a new, fully anisotropic, criterion for formation of trapped surfaces in vacuum. More precisely we provide conditions on null data, concentrated in a neighborhood of a short null geodesic segment (possibly flat everywhere else) whose future development contains a trapped surface. This extends considerably th... |
1606.00711 | Lorenzo Sebastiani | Ratbay Myrzakulov and Lorenzo Sebastiani | $k$-essence non-minimally coupled with Gauss-Bonnet invariant for
inflation | final version, accepted in Symmetry 14 pages | null | 10.3390/sym8070057 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we investigated inflationary solutions for a subclass of
Horndeski models where a scalar field is non-minimally coupled with the
Gauss-Bonnet invariant. Examples of canonical scalar field and $k$-essence to
support the early-time acceleration are considered. The formalism to calculate
the perturbations... | [
{
"created": "Mon, 30 May 2016 04:36:52 GMT",
"version": "v1"
},
{
"created": "Tue, 28 Jun 2016 15:56:32 GMT",
"version": "v2"
}
] | 2017-03-29 | [
[
"Myrzakulov",
"Ratbay",
""
],
[
"Sebastiani",
"Lorenzo",
""
]
] | In this paper, we investigated inflationary solutions for a subclass of Horndeski models where a scalar field is non-minimally coupled with the Gauss-Bonnet invariant. Examples of canonical scalar field and $k$-essence to support the early-time acceleration are considered. The formalism to calculate the perturbations i... |
gr-qc/9809058 | Vladimir O. Soloviev | Vladimir O. Soloviev | Free Boundary Poisson Bracket Algebra in Ashtekar's Formalism | 19 pages, Latex, amsfonts.sty, amssymb.sty | Theor.Math.Phys.112:906-921,1997; Teor.Mat.Fiz.112N1:142-160,1997 | 10.1007/BF02634107 | null | gr-qc hep-th | null | We consider the algebra of spatial diffeomorphisms and gauge transformations
in the canonical formalism of General Relativity in the Ashtekar and ADM
variables. Modifying the Poisson bracket by including surface terms in
accordance with our previous proposal allows us to consider all local
functionals as differentiab... | [
{
"created": "Fri, 18 Sep 1998 10:50:41 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Soloviev",
"Vladimir O.",
""
]
] | We consider the algebra of spatial diffeomorphisms and gauge transformations in the canonical formalism of General Relativity in the Ashtekar and ADM variables. Modifying the Poisson bracket by including surface terms in accordance with our previous proposal allows us to consider all local functionals as differentiable... |
gr-qc/0211013 | Lorenzo Iorio | Lorenzo Iorio, Ignazio Ciufolini, Erricos Pavlis, Stephan Schiller,
Hansjoerg Dittus, Claus Laemmerzahl | On the possibility of measuring relativistic gravitational effects with
a LAGEOS-LAGEOS II-OPTIS-mission | Abridged version. 16 pages, no figures, 1 table. First results from
the GGM01C Earth gravity model. GRACE data included | Class.Quant.Grav.21:2139-2151,2004 | 10.1088/0264-9381/21/8/016 | null | gr-qc astro-ph | null | In this paper we wish to preliminary investigate if it would be possible to
use the orbital data from the proposed OPTIS mission together with those from
the existing geodetic passive SLR LAGEOS and LAGEOS II satellites in order to
perform precise measurements of some general relativistic
gravitoelectromagnetic effec... | [
{
"created": "Mon, 4 Nov 2002 21:18:34 GMT",
"version": "v1"
},
{
"created": "Mon, 20 Jan 2003 12:26:22 GMT",
"version": "v2"
},
{
"created": "Thu, 17 Jul 2003 11:36:48 GMT",
"version": "v3"
},
{
"created": "Sun, 5 Oct 2003 22:08:41 GMT",
"version": "v4"
},
{
"cre... | 2014-11-17 | [
[
"Iorio",
"Lorenzo",
""
],
[
"Ciufolini",
"Ignazio",
""
],
[
"Pavlis",
"Erricos",
""
],
[
"Schiller",
"Stephan",
""
],
[
"Dittus",
"Hansjoerg",
""
],
[
"Laemmerzahl",
"Claus",
""
]
] | In this paper we wish to preliminary investigate if it would be possible to use the orbital data from the proposed OPTIS mission together with those from the existing geodetic passive SLR LAGEOS and LAGEOS II satellites in order to perform precise measurements of some general relativistic gravitoelectromagnetic effects... |
1012.4476 | T. Padmanabhan | T. Padmanabhan | Lessons from Classical Gravity about the Quantum Structure of Spacetime | Expanded version of the lectures given on several occasions including
(i) Plenary talk at ERE 2010, Granada, September 2010; (ii) Keynote address
at DICE 2010, Castiglioncello, September 2010; (iii) Special Lecture at the
Indian Academy of Sciences, Bangalore, July 2010; ver2: Sec 6 made clearer | J.Phys.Conf.Ser.306:012001,2011 | 10.1088/1742-6596/306/1/012001 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | I present the theoretical evidence which suggests that gravity is an emergent
phenomenon like gas dynamics or elasticity with the gravitational field
equations having the same status as, say, the equations of fluid
dynamics/elasticity. This paradigm views a wide class of gravitational theories
- including Einstein's ... | [
{
"created": "Mon, 20 Dec 2010 21:06:17 GMT",
"version": "v1"
},
{
"created": "Sat, 22 Jan 2011 08:24:03 GMT",
"version": "v2"
}
] | 2011-07-13 | [
[
"Padmanabhan",
"T.",
""
]
] | I present the theoretical evidence which suggests that gravity is an emergent phenomenon like gas dynamics or elasticity with the gravitational field equations having the same status as, say, the equations of fluid dynamics/elasticity. This paradigm views a wide class of gravitational theories - including Einstein's th... |
2209.12950 | Valentin Boyanov | Valentin Boyanov, Kyriakos Destounis, Rodrigo Panosso Macedo, Vitor
Cardoso, Jos\'e Luis Jaramillo | Pseudospectrum of horizonless compact objects: a bootstrap instability
mechanism | 19 pages, 5 figures; v2: minor changes and references added | Phys. Rev. D 107, 064012 (2023) | 10.1103/PhysRevD.107.064012 | null | gr-qc hep-th math-ph math.MP | http://creativecommons.org/licenses/by/4.0/ | Recent investigations of the pseudospectrum in black hole spacetimes have
shown that quasinormal mode frequencies suffer from spectral instabilities.
This phenomenon may severely affect gravitational-wave spectroscopy and limit
precision tests of general relativity. We extend the pseudospectrum analysis to
horizonles... | [
{
"created": "Mon, 26 Sep 2022 18:36:53 GMT",
"version": "v1"
},
{
"created": "Thu, 9 Mar 2023 09:32:08 GMT",
"version": "v2"
}
] | 2023-03-13 | [
[
"Boyanov",
"Valentin",
""
],
[
"Destounis",
"Kyriakos",
""
],
[
"Macedo",
"Rodrigo Panosso",
""
],
[
"Cardoso",
"Vitor",
""
],
[
"Jaramillo",
"José Luis",
""
]
] | Recent investigations of the pseudospectrum in black hole spacetimes have shown that quasinormal mode frequencies suffer from spectral instabilities. This phenomenon may severely affect gravitational-wave spectroscopy and limit precision tests of general relativity. We extend the pseudospectrum analysis to horizonless ... |
1202.5100 | Vladimir Dzhunushaliev | Vladimir Dzhunushaliev | Canonical conjugated Dirac equation in a curved space | mention of Lagrangian is omitted | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is shown that the calculation of Dirac operator for the spherical
coordinate system with spherical Dirac matrices and using the spin connection
formalism is in the contradiction with the definition of standard Dirac
operator in the spherical Minkowski coordinate system. It is shown that such
contradiction one can ... | [
{
"created": "Thu, 23 Feb 2012 07:30:29 GMT",
"version": "v1"
},
{
"created": "Sat, 25 Feb 2012 05:10:38 GMT",
"version": "v2"
}
] | 2012-02-28 | [
[
"Dzhunushaliev",
"Vladimir",
""
]
] | It is shown that the calculation of Dirac operator for the spherical coordinate system with spherical Dirac matrices and using the spin connection formalism is in the contradiction with the definition of standard Dirac operator in the spherical Minkowski coordinate system. It is shown that such contradiction one can av... |
1809.01908 | Edward Anderson | Edward Anderson | A Local Resolution of the Problem of Time | 5 pages, 1 figure. References updated | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We here announce and outline a solution of this major and longstanding
foundational problem, dealing with all seven of its heavily-interrelated local
facets.
| [
{
"created": "Thu, 6 Sep 2018 09:58:22 GMT",
"version": "v1"
},
{
"created": "Mon, 24 Sep 2018 16:01:49 GMT",
"version": "v2"
}
] | 2018-09-25 | [
[
"Anderson",
"Edward",
""
]
] | We here announce and outline a solution of this major and longstanding foundational problem, dealing with all seven of its heavily-interrelated local facets. |
1109.3821 | Ahmad Hujeirat | A. A. Hujeirat | On the viability of gravitational Bose-Einstein condensates as
alternatives to supermassive black holes | null | null | 10.1111/j.1365-2966.2012.21102.x | null | gr-qc astro-ph.HE cond-mat.supr-con | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Black holes are inevitable mathematical outcome of spacetime-energy coupling
in general relativity. Currently these objects are of vital importance for
understanding numerous phenomena in astrophysics and cosmology.
However, neither theory nor observations have been capable of unequivocally
prove the existence of b... | [
{
"created": "Sat, 17 Sep 2011 23:33:10 GMT",
"version": "v1"
},
{
"created": "Tue, 20 Sep 2011 22:04:57 GMT",
"version": "v2"
}
] | 2015-05-30 | [
[
"Hujeirat",
"A. A.",
""
]
] | Black holes are inevitable mathematical outcome of spacetime-energy coupling in general relativity. Currently these objects are of vital importance for understanding numerous phenomena in astrophysics and cosmology. However, neither theory nor observations have been capable of unequivocally prove the existence of black... |
1904.07869 | Francesco Torsello | Francesco Torsello, Mikica Kocic, Marcus H\"og{\aa}s, Edvard
M\"ortsell | Covariant BSSN formulation in bimetric relativity | It matches the published version and its corrigendum at
https://doi.org/10.1088/1361-6382/ab74f7. 14 pages plus appendices. The
ancillary files contain the supplementary material and the paper in colors | 2020 Class. Quantum Grav. 37 025013 | 10.1088/1361-6382/ab56fc | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Numerical integration of the field equations in bimetric relativity is
necessary to obtain solutions describing realistic systems. Thus, it is crucial
to recast the equations as a well-posed problem. In general relativity, under
certain assumptions, the covariant BSSN formulation is a strongly hyperbolic
formulation ... | [
{
"created": "Tue, 16 Apr 2019 18:00:01 GMT",
"version": "v1"
},
{
"created": "Fri, 6 Mar 2020 08:11:39 GMT",
"version": "v2"
}
] | 2020-03-09 | [
[
"Torsello",
"Francesco",
""
],
[
"Kocic",
"Mikica",
""
],
[
"Högås",
"Marcus",
""
],
[
"Mörtsell",
"Edvard",
""
]
] | Numerical integration of the field equations in bimetric relativity is necessary to obtain solutions describing realistic systems. Thus, it is crucial to recast the equations as a well-posed problem. In general relativity, under certain assumptions, the covariant BSSN formulation is a strongly hyperbolic formulation of... |
gr-qc/0303086 | Jose A. Gonzalez | Miguel Alcubierre, Alejandro Corichi, Jose A. Gonzalez, Dario Nunez
and Marcelo Salgado | Hyperbolicity of the Kidder-Scheel-Teukolsky formulation of Einstein's
equations coupled to a modified Bona-Masso slicing condition | 4 pages. Several changes. Main corrections are in eqs. 4.9 and 4.10 | Phys.Rev. D67 (2003) 104021 | 10.1103/PhysRevD.67.104021 | null | gr-qc | null | We show that the Kidder-Scheel-Teukolsky family of hyperbolic formulations of
the 3+1 evolution equations of general relativity remains hyperbolic when
coupled to a recently proposed modified version of the Bona-Masso slicing
condition.
| [
{
"created": "Fri, 21 Mar 2003 17:47:18 GMT",
"version": "v1"
},
{
"created": "Thu, 27 Mar 2003 00:38:11 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Alcubierre",
"Miguel",
""
],
[
"Corichi",
"Alejandro",
""
],
[
"Gonzalez",
"Jose A.",
""
],
[
"Nunez",
"Dario",
""
],
[
"Salgado",
"Marcelo",
""
]
] | We show that the Kidder-Scheel-Teukolsky family of hyperbolic formulations of the 3+1 evolution equations of general relativity remains hyperbolic when coupled to a recently proposed modified version of the Bona-Masso slicing condition. |
1409.0705 | Gabriel Dufour | Gabriel Dufour, David B. Cassidy, Paolo Crivelli, Pascal Debu, Astrid
Lambrecht, Valery V. Nesvizhevsky, Serge Reynaud, Alexei Yu. Voronin, Thomas
E. Wall | Prospects for studies of the free fall and gravitational quantum states
of antimatter | This work reviews contributions made at the GRANIT 2014 workshop on
prospects for the observation of the free fall and gravitational quantum
states of antimatter | Advances in High Energy Physics, vol. 2015, article ID 379642
(2015) | 10.1155/2015/379642. | null | gr-qc physics.atom-ph quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Different experiments are ongoing to measure the effect of gravity on cold
neutral antimatter atoms such as positronium, muonium and antihydrogen. Among
those, the project GBAR in CERN aims to measure precisely the gravitational
fall of ultracold antihydrogen atoms. In the ultracold regime, the interaction
of antihyd... | [
{
"created": "Mon, 1 Sep 2014 08:29:22 GMT",
"version": "v1"
}
] | 2015-03-10 | [
[
"Dufour",
"Gabriel",
""
],
[
"Cassidy",
"David B.",
""
],
[
"Crivelli",
"Paolo",
""
],
[
"Debu",
"Pascal",
""
],
[
"Lambrecht",
"Astrid",
""
],
[
"Nesvizhevsky",
"Valery V.",
""
],
[
"Reynaud",
"Serge",
""
... | Different experiments are ongoing to measure the effect of gravity on cold neutral antimatter atoms such as positronium, muonium and antihydrogen. Among those, the project GBAR in CERN aims to measure precisely the gravitational fall of ultracold antihydrogen atoms. In the ultracold regime, the interaction of antihydro... |
1012.5557 | Gilberto Medeiros Kremer | Marlos O. Ribas, Fernando P. Devecchi and Gilberto M. Kremer | Fermionic cosmologies with Yukawa type interactions | 4 pages, 3 figures. To appear in Europhysics Letters | Europhys.Lett.93:19002,2011 | 10.1209/0295-5075/93/19002 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we discuss if fermionic sources could be responsible for
accelerated periods in a Friedmann-Robertson-Walker spatially flat universe,
including a usual self-interaction potential of the Nambu-Jona-Lasinio type
together with a fermion-scalar interaction potential of the Yukawa type. The
results show that ... | [
{
"created": "Mon, 27 Dec 2010 05:44:54 GMT",
"version": "v1"
}
] | 2011-02-02 | [
[
"Ribas",
"Marlos O.",
""
],
[
"Devecchi",
"Fernando P.",
""
],
[
"Kremer",
"Gilberto M.",
""
]
] | In this work we discuss if fermionic sources could be responsible for accelerated periods in a Friedmann-Robertson-Walker spatially flat universe, including a usual self-interaction potential of the Nambu-Jona-Lasinio type together with a fermion-scalar interaction potential of the Yukawa type. The results show that th... |
2003.01645 | Pritam Nanda | Amit Ghosh, Avirup Ghosh and Pritam Nanda | On Super-Translation transition between Quasi-local Black holes | null | Phys. Rev. D 102, 124061 (2020) | 10.1103/PhysRevD.102.124061 | USTC-ICTS/PCFT-20-09 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We re-explore the symmetries of a weakly isolated horizon (WIH) from the
perspective of freedom in the choice of intrinsic data. The supertranslations
are realized as additional symmetries. Further, it is shown that all smooth
vector fields tangent to the cross-sections are Hamiltonian. We show that
joining two WIHs ... | [
{
"created": "Tue, 3 Mar 2020 17:13:04 GMT",
"version": "v1"
}
] | 2021-01-04 | [
[
"Ghosh",
"Amit",
""
],
[
"Ghosh",
"Avirup",
""
],
[
"Nanda",
"Pritam",
""
]
] | We re-explore the symmetries of a weakly isolated horizon (WIH) from the perspective of freedom in the choice of intrinsic data. The supertranslations are realized as additional symmetries. Further, it is shown that all smooth vector fields tangent to the cross-sections are Hamiltonian. We show that joining two WIHs wh... |
1604.08530 | Vincenzo Branchina | Vincenzo Branchina and Manlio De Domenico | Simultaneous observation of gravitational and electromagnetic waves | 14 pages, 4 figures | null | null | null | gr-qc astro-ph.HE hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Assuming that the short gamma-ray burst detected by the Fermi Gamma-Ray Space
Telescope about 0.4 seconds after the gravitational waves observed by the LIGO
and VIRGO Collaborations originated from the same black hole merger event, we
perform a model-independent analysis of different quantum gravity scenarios
based o... | [
{
"created": "Thu, 28 Apr 2016 17:40:35 GMT",
"version": "v1"
}
] | 2016-05-02 | [
[
"Branchina",
"Vincenzo",
""
],
[
"De Domenico",
"Manlio",
""
]
] | Assuming that the short gamma-ray burst detected by the Fermi Gamma-Ray Space Telescope about 0.4 seconds after the gravitational waves observed by the LIGO and VIRGO Collaborations originated from the same black hole merger event, we perform a model-independent analysis of different quantum gravity scenarios based on ... |
0903.3881 | Yen Cheong Lee | Atsushi Higuchi, Yen Cheong Lee | A conformally coupled massive scalar field in the de Sitter expanding
universe with the mass term treated as a perturbation | 15 pages | Class.Quant.Grav.26:135019,2009 | 10.1088/0264-9381/26/13/135019 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study conformally-coupled massive scalar field theory with the mass term
treated as a perturbation in the expanding half of de Sitter spacetime as a toy
model for comparing various perturbative formalisms. We point out that the
in-out perturbation theory breaks down due to infrared divergences coming from
the infi... | [
{
"created": "Mon, 23 Mar 2009 15:55:32 GMT",
"version": "v1"
},
{
"created": "Fri, 19 Jun 2009 14:30:50 GMT",
"version": "v2"
}
] | 2014-11-18 | [
[
"Higuchi",
"Atsushi",
""
],
[
"Lee",
"Yen Cheong",
""
]
] | We study conformally-coupled massive scalar field theory with the mass term treated as a perturbation in the expanding half of de Sitter spacetime as a toy model for comparing various perturbative formalisms. We point out that the in-out perturbation theory breaks down due to infrared divergences coming from the infini... |
gr-qc/9908013 | Leonard Parker | Leonard Parker and Alpan Raval | Vacuum effects of ultra-low mass particle account for Recent
Acceleration of Universe | 15 pages, 4 figures, RevTeX | Phys.Rev.D60:123502,1999; Erratum-ibid.D67:029902,2003 | 10.1103/PhysRevD.60.123502 10.1103/PhysRevD.67.029902 | WISC-MILW-99-TH-10 | gr-qc astro-ph hep-ph quant-ph | null | In recent work, we showed that non-perturbative vacuum effects of a very low
mass particle could induce, at a redshift of order 1, a transition from a
matter-dominated to an accelerating universe. In that work, we used the
simplification of a sudden transition out of the matter-dominated stage and
were able to fit th... | [
{
"created": "Wed, 4 Aug 1999 18:30:37 GMT",
"version": "v1"
}
] | 2014-11-17 | [
[
"Parker",
"Leonard",
""
],
[
"Raval",
"Alpan",
""
]
] | In recent work, we showed that non-perturbative vacuum effects of a very low mass particle could induce, at a redshift of order 1, a transition from a matter-dominated to an accelerating universe. In that work, we used the simplification of a sudden transition out of the matter-dominated stage and were able to fit the ... |
1305.3195 | Roberto Casadio | R. Casadio | Localised particles and fuzzy horizons: A tool for probing Quantum Black
Holes | 6 pages, 2 figures. Comments and suggestions appreciated | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The horizon is a classical concept that arises in general relativity, and is
therefore not clearly defined when the source cannot be reliably described by
classical physics. To any (sufficiently) localised quantum mechanical
wave-function, one can associate a horizon wave-function which yields the
probability of find... | [
{
"created": "Tue, 14 May 2013 16:10:45 GMT",
"version": "v1"
}
] | 2013-05-15 | [
[
"Casadio",
"R.",
""
]
] | The horizon is a classical concept that arises in general relativity, and is therefore not clearly defined when the source cannot be reliably described by classical physics. To any (sufficiently) localised quantum mechanical wave-function, one can associate a horizon wave-function which yields the probability of findin... |
gr-qc/9806096 | null | Dan N. Vollick | Wormholes in String Theory | 9 pages, LaTex, submitted to Phys. Rev. D | Class.Quant.Grav.16:1599-1604,1999 | 10.1088/0264-9381/16/5/309 | null | gr-qc | null | A wormhole is constructed by cutting and joining two spacetimes satisfying
the low energy string equations with a dilaton field. In spacetimes described
by the "string metric" the dilaton energy-momentum tensor need not satisfy the
weak or dominant energy conditions. In the cases considered here the dilaton
field vio... | [
{
"created": "Wed, 24 Jun 1998 21:05:36 GMT",
"version": "v1"
}
] | 2010-11-19 | [
[
"Vollick",
"Dan N.",
""
]
] | A wormhole is constructed by cutting and joining two spacetimes satisfying the low energy string equations with a dilaton field. In spacetimes described by the "string metric" the dilaton energy-momentum tensor need not satisfy the weak or dominant energy conditions. In the cases considered here the dilaton field viola... |
2103.09083 | Ming Zhang | Ming Zhang and Jie Jiang | Null hypersurface caustics and super-entropic black holes | 8 pages, 1 figures | null | 10.1016/j.physletb.2021.136197 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We obtain a charged, rotating and accelerating black hole solution in the
$f(R)$ gravity and calculate thermodynamic quantities of the black hole in the
slow acceleration regime. We then find that the black hole can be
super-entropic in a certain condition. After investigating the null
hypersurface of the black hole,... | [
{
"created": "Tue, 16 Mar 2021 14:10:05 GMT",
"version": "v1"
}
] | 2022-07-27 | [
[
"Zhang",
"Ming",
""
],
[
"Jiang",
"Jie",
""
]
] | We obtain a charged, rotating and accelerating black hole solution in the $f(R)$ gravity and calculate thermodynamic quantities of the black hole in the slow acceleration regime. We then find that the black hole can be super-entropic in a certain condition. After investigating the null hypersurface of the black hole, w... |
gr-qc/9609057 | Stephen Lau | J. D. Brown, S. R. Lau, and J. W. York, Jr | Energy of Isolated Systems at Retarded Times as the Null Limit of
Quasilocal Energy | REVTEX, 16 pages, 1 figure | Phys. Rev. D 55, 1977 (1997) | 10.1103/PhysRevD.55.1977 | NCSU/CTMP/013; TUW-10-96; IFP-730-UNC and TAR-054-UNC | gr-qc | null | We define the energy of a perfectly isolated system at a given retarded time
as the suitable null limit of the quasilocal energy $E$. The result coincides
with the Bondi-Sachs mass. Our $E$ is the lapse-unity shift-zero boundary value
of the gravitational Hamiltonian appropriate for the partial system $\Sigma$
contai... | [
{
"created": "Tue, 24 Sep 1996 15:54:37 GMT",
"version": "v1"
}
] | 2016-08-24 | [
[
"Brown",
"J. D.",
""
],
[
"Lau",
"S. R.",
""
],
[
"York,",
"J. W.",
"Jr"
]
] | We define the energy of a perfectly isolated system at a given retarded time as the suitable null limit of the quasilocal energy $E$. The result coincides with the Bondi-Sachs mass. Our $E$ is the lapse-unity shift-zero boundary value of the gravitational Hamiltonian appropriate for the partial system $\Sigma$ containe... |
2405.08262 | Alexey Dubinsky | Alexey Dubinsky | Quasinormal modes of charged black holes in Asymptotically Safe Gravity | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We calculate quasinormal modes of scalar and neutrino perturbations around
the charged black hole in Asymptotically Safe Gravity. We show that the charge
and coupling constant change the quasinormal spectrum considerably. We show
that previous calculations of scalar quasinormal modes in this background [F.
Javed, Phy... | [
{
"created": "Tue, 14 May 2024 01:40:14 GMT",
"version": "v1"
}
] | 2024-05-15 | [
[
"Dubinsky",
"Alexey",
""
]
] | We calculate quasinormal modes of scalar and neutrino perturbations around the charged black hole in Asymptotically Safe Gravity. We show that the charge and coupling constant change the quasinormal spectrum considerably. We show that previous calculations of scalar quasinormal modes in this background [F. Javed, Phys.... |
1606.07045 | Rafael Augusto Couceiro Correa | P. H. R. S. Moraes, R. A. C. Correa | Evading the non-continuity equation in the f(R, T) formalism | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a new approach for the $f(R,T)$ formalism, by exploring the extra
terms of its effective energy-momentum tensor $T_{\mu\nu}^{eff}$, namely
$\tilde{T}_{\mu\nu}$. Those arise from the consideration of quantum effects,
which are usually neglected in general relativity and $f(R)$ theories, and are
summed to th... | [
{
"created": "Wed, 22 Jun 2016 19:15:33 GMT",
"version": "v1"
}
] | 2016-06-23 | [
[
"Moraes",
"P. H. R. S.",
""
],
[
"Correa",
"R. A. C.",
""
]
] | We present a new approach for the $f(R,T)$ formalism, by exploring the extra terms of its effective energy-momentum tensor $T_{\mu\nu}^{eff}$, namely $\tilde{T}_{\mu\nu}$. Those arise from the consideration of quantum effects, which are usually neglected in general relativity and $f(R)$ theories, and are summed to the ... |
0812.1738 | Peter Hess O | Peter O. Hess and Walter Greiner | Pseudo-complex General Relativity | 30 pages, 3 figures | null | 10.1142/S0218301309012045 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An extension of the theory of General Relativity is proposed, based on
pseudo-complex space-time coordinates. The new theory corresponds to the
introduction of two, in general different, metrics which are connected through
specific conditions. A pseudo-complex Schwarzschild solution is constructed,
which does not suf... | [
{
"created": "Tue, 9 Dec 2008 16:30:56 GMT",
"version": "v1"
}
] | 2009-11-13 | [
[
"Hess",
"Peter O.",
""
],
[
"Greiner",
"Walter",
""
]
] | An extension of the theory of General Relativity is proposed, based on pseudo-complex space-time coordinates. The new theory corresponds to the introduction of two, in general different, metrics which are connected through specific conditions. A pseudo-complex Schwarzschild solution is constructed, which does not suffe... |
2301.01309 | Parampreet Singh | Abhay Ashtekar, Javier Olmedo, Parampreet Singh | Regular black holes from Loop Quantum Gravity | Invited Chapter for the book Regular Black Holes: Towards a New
Paradigm of Gravitational Collapse, Ed. C. Bambi, Springer Singapore (2023).
48 pages, 6 figures | null | null | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | There is rich literature on regular black holes from loop quantum gravity
(LQG), where quantum geometry effects resolve the singularity, leading to a
quantum extension of the classical space-time. As we will see, the mechanism
that resolves the singularity can also trigger conceptually undesirable
features that can b... | [
{
"created": "Tue, 3 Jan 2023 19:01:05 GMT",
"version": "v1"
}
] | 2023-01-05 | [
[
"Ashtekar",
"Abhay",
""
],
[
"Olmedo",
"Javier",
""
],
[
"Singh",
"Parampreet",
""
]
] | There is rich literature on regular black holes from loop quantum gravity (LQG), where quantum geometry effects resolve the singularity, leading to a quantum extension of the classical space-time. As we will see, the mechanism that resolves the singularity can also trigger conceptually undesirable features that can be ... |
1508.02876 | Anirban Saha Dr. | Anirban Saha, Sunandan Gangopadhyay | Resonant-bar detectors of gravitational wave as possible probe of the
noncommutative structure of space | Title changed, Abstract rewriten, paper revised, 6 pages, RevTex, No
figures | Class.Quant.Grav. 33 (2016) no.20, 205006 | 10.1088/0264-9381/33/20/205006 | null | gr-qc astro-ph.HE hep-ph hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We report the plausibility of using quantum mechanical transitions, induced
by the combined effect of Gravitational wave (GW) and noncommutative (NC)
structure of space, among the states of a 2-dimensional harmonic oscillator, to
probe the spatial NC geometry. The phonon modes excited by the passing GW
within the res... | [
{
"created": "Wed, 12 Aug 2015 11:11:32 GMT",
"version": "v1"
},
{
"created": "Thu, 24 Dec 2015 12:15:54 GMT",
"version": "v2"
}
] | 2017-01-04 | [
[
"Saha",
"Anirban",
""
],
[
"Gangopadhyay",
"Sunandan",
""
]
] | We report the plausibility of using quantum mechanical transitions, induced by the combined effect of Gravitational wave (GW) and noncommutative (NC) structure of space, among the states of a 2-dimensional harmonic oscillator, to probe the spatial NC geometry. The phonon modes excited by the passing GW within the reson... |
1101.1102 | Yurii Ignatyev | Yu.G. Ignatyev | Kinetic model of GMSW in an anisotropic plasma | 14 pages, 12 references | Grav.Cosmol.3:254-260,1997 | null | null | gr-qc astro-ph.HE physics.plasm-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A kinetic model of gravimagnetic shock waves (GMSW) in a locally anisotropic
plasma is investigated. The equations of a drift approximation are written, and
the moments of the distribution function are calculated. Solutions of the drift
equations for a highly anisotropic ultrarelativistic plasma are found. It is
show... | [
{
"created": "Wed, 5 Jan 2011 21:24:58 GMT",
"version": "v1"
}
] | 2011-02-09 | [
[
"Ignatyev",
"Yu. G.",
""
]
] | A kinetic model of gravimagnetic shock waves (GMSW) in a locally anisotropic plasma is investigated. The equations of a drift approximation are written, and the moments of the distribution function are calculated. Solutions of the drift equations for a highly anisotropic ultrarelativistic plasma are found. It is shown ... |
1512.08809 | Edward Kuryanovich | E. A. Kuryanovich | Exact solutions of Friedmann equation | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The cosmological Friedmann equation for the universe filled with a scalar
field is reduced to a system of two equations of the first order, one of which
is an equation with separable variables. For the second equation the exact
solutions are given in closed form for potentials as constants and exponents.
For the same... | [
{
"created": "Tue, 29 Dec 2015 22:08:29 GMT",
"version": "v1"
}
] | 2015-12-31 | [
[
"Kuryanovich",
"E. A.",
""
]
] | The cosmological Friedmann equation for the universe filled with a scalar field is reduced to a system of two equations of the first order, one of which is an equation with separable variables. For the second equation the exact solutions are given in closed form for potentials as constants and exponents. For the same e... |
gr-qc/0602032 | Lior M. Burko | Lior M. Burko | Orbital evolution of a test particle around a black hole: Indirect
determination of the self force in the post Newtonian approximation | 5 pages, 2 figures | Class.Quant.Grav. 23 (2006) 4281-4288 | 10.1088/0264-9381/23/12/021 | null | gr-qc | null | Comparing the corrections to Kepler's law with orbital evolution under a self
force, we extract the finite, already regularized part of the latter in a
specific gauge. We apply this method to a quasi-circular orbit around a
Schwarzschild black hole of an extreme mass ratio binary, and determine the
first- and second-... | [
{
"created": "Wed, 8 Feb 2006 16:50:21 GMT",
"version": "v1"
},
{
"created": "Thu, 6 Apr 2006 15:21:40 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Burko",
"Lior M.",
""
]
] | Comparing the corrections to Kepler's law with orbital evolution under a self force, we extract the finite, already regularized part of the latter in a specific gauge. We apply this method to a quasi-circular orbit around a Schwarzschild black hole of an extreme mass ratio binary, and determine the first- and second-or... |
1506.00882 | Grigory Volovik | G. Jannes, G.E. Volovik | Emergent physics on Mach's principle and the rotating vacuum | 16 pages version submitted to JETP Letters | Pis'ma ZhETF 102, 82-88 (2015); JETP Lett. 102, 73-79 (2015) | 10.1134/S0021364015140052 | null | gr-qc cond-mat.other hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Mach's principle applied to rotation can be correct if one takes into account
the rotation of the quantum vacuum together with the Universe. Whether one can
detect the rotation of the vacuum or not depends on its properties. If the
vacuum is fully relativistic at all scales, Mach's principle should work and
one canno... | [
{
"created": "Tue, 2 Jun 2015 13:46:38 GMT",
"version": "v1"
},
{
"created": "Thu, 4 Jun 2015 13:07:34 GMT",
"version": "v2"
}
] | 2015-10-28 | [
[
"Jannes",
"G.",
""
],
[
"Volovik",
"G. E.",
""
]
] | Mach's principle applied to rotation can be correct if one takes into account the rotation of the quantum vacuum together with the Universe. Whether one can detect the rotation of the vacuum or not depends on its properties. If the vacuum is fully relativistic at all scales, Mach's principle should work and one cannot ... |
1407.8166 | Gianluca Calcagni | Gianluca Calcagni | Loop quantum cosmology from group field theory | 5 pages. v2: typos corrected, eprint number of Ref. [14] added; v3:
results with interactions included | Phys. Rev. D 90, 064047 (2014) | 10.1103/PhysRevD.90.064047 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that the effective dynamics of the recently proposed isotropic
condensate state of group field theory with Laplacian kinetic operator can be
equivalent to that of homogeneous and isotropic loop quantum cosmology in the
improved dynamics quantization scheme, where the area of elementary holonomy
plaquettes is ... | [
{
"created": "Wed, 30 Jul 2014 19:30:21 GMT",
"version": "v1"
},
{
"created": "Thu, 31 Jul 2014 15:17:33 GMT",
"version": "v2"
},
{
"created": "Sat, 27 Sep 2014 19:49:59 GMT",
"version": "v3"
}
] | 2014-09-30 | [
[
"Calcagni",
"Gianluca",
""
]
] | We show that the effective dynamics of the recently proposed isotropic condensate state of group field theory with Laplacian kinetic operator can be equivalent to that of homogeneous and isotropic loop quantum cosmology in the improved dynamics quantization scheme, where the area of elementary holonomy plaquettes is co... |
1210.0509 | S. I. Kruglov | S. I. Kruglov | Modified Dirac equation with Lorentz invariance violation and its
solutions for particles in an external magnetic field | 11 pages, corrected typo in Eq.(10) | Physics Letters B Vol. 718 (2012), pp. 228-231 | 10.1016/j.physletb.2012.10.037 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The second-order modified Dirac equation leading to the modified dispersion
relation due to the Lorentz invariance violation corrections is suggested. The
equation is formulated in the 16-component first- order form. I have obtained
the projection matrix extracting solutions of the equation with definite spin
project... | [
{
"created": "Mon, 17 Sep 2012 13:58:54 GMT",
"version": "v1"
},
{
"created": "Mon, 15 Oct 2012 21:33:39 GMT",
"version": "v2"
},
{
"created": "Wed, 2 Jan 2013 17:05:38 GMT",
"version": "v3"
}
] | 2013-01-03 | [
[
"Kruglov",
"S. I.",
""
]
] | The second-order modified Dirac equation leading to the modified dispersion relation due to the Lorentz invariance violation corrections is suggested. The equation is formulated in the 16-component first- order form. I have obtained the projection matrix extracting solutions of the equation with definite spin projectio... |
2201.08391 | Dr. Bikash Chandra Paul | Sagar Dey and Bikash Chandra Paul | Anisotropic strange stars in Einstein Gauss-Bonnet Gravity with
Finch-Skea metric | 19 pages and 8 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We obtain a class of new anisotropic relativistic solution in Einstein
Gauss-Bonnet (EGB) gravity with Finch-Skea metric in hydrostatic equilibrium.
The relativistic solutions are employed to construct anisotropic stellar models
for strange star with MIT Bag equation of state $ p_{r}= \frac{1}{3} \left(
\rho - 4 B_{g... | [
{
"created": "Thu, 20 Jan 2022 15:17:06 GMT",
"version": "v1"
},
{
"created": "Tue, 25 Jan 2022 11:15:39 GMT",
"version": "v2"
}
] | 2022-01-26 | [
[
"Dey",
"Sagar",
""
],
[
"Paul",
"Bikash Chandra",
""
]
] | We obtain a class of new anisotropic relativistic solution in Einstein Gauss-Bonnet (EGB) gravity with Finch-Skea metric in hydrostatic equilibrium. The relativistic solutions are employed to construct anisotropic stellar models for strange star with MIT Bag equation of state $ p_{r}= \frac{1}{3} \left( \rho - 4 B_{g}\... |
1612.05861 | Ali Chamseddine | Ali H. Chamseddine and Viatcheslav Mukhanov | Nonsingular Black Hole | 21 pages | Eur.Phys.J. C77 (2017) no.3, 183 | 10.1140/epjc/s10052-017-4759-z | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the Schwarzschild black hole and show how, in a theory with
limiting curvature, the physical singularity "inside it" is removed. The
resulting spacetime is geodesically complete. The internal structure of this
nonsingular black hole is analogus to Russian nesting dolls. Namely, after
falling into the blac... | [
{
"created": "Sun, 18 Dec 2016 06:56:07 GMT",
"version": "v1"
}
] | 2017-04-18 | [
[
"Chamseddine",
"Ali H.",
""
],
[
"Mukhanov",
"Viatcheslav",
""
]
] | We consider the Schwarzschild black hole and show how, in a theory with limiting curvature, the physical singularity "inside it" is removed. The resulting spacetime is geodesically complete. The internal structure of this nonsingular black hole is analogus to Russian nesting dolls. Namely, after falling into the black ... |
0711.0012 | Alexis Larranaga | Alexis Larranaga | Stringy Generalization of the First Law of Thermodynamics for Rotating
BTZ Black Hole with a Cosmological Constant as State Parameter | 5 pages | null | null | null | gr-qc | null | In this paper we will show that using the cosmological constant as a new
thermodynamical state variable, the differential and integral mass formulas of
the first law of thermodynamics for asymptotic flat spacetimes can be extended
to be used at the two horizons of the (2+1) dimensional BTZ black hole. We also
extend ... | [
{
"created": "Wed, 31 Oct 2007 20:55:47 GMT",
"version": "v1"
}
] | 2007-11-02 | [
[
"Larranaga",
"Alexis",
""
]
] | In this paper we will show that using the cosmological constant as a new thermodynamical state variable, the differential and integral mass formulas of the first law of thermodynamics for asymptotic flat spacetimes can be extended to be used at the two horizons of the (2+1) dimensional BTZ black hole. We also extend th... |
1006.3094 | Jorge Paramos | O. Bertolami and J. P\'aramos | Using global positioning systems to test extensions of General
Relativity | 29 pages, 3 figures | Int.J.Mod.Phys.D20:1617-1641,2011 | 10.1142/S0218271811019451 | null | gr-qc physics.space-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the feasibility of using the Galileo Navigation Satellite System
to constrain possible extensions or modifications to General Relativity, by
assessing the impact of the related additions to the Newtonian potential and
comparing with the available observables: the relative frequency shift and the
time dela... | [
{
"created": "Tue, 15 Jun 2010 21:12:42 GMT",
"version": "v1"
},
{
"created": "Sun, 17 Jul 2011 22:06:50 GMT",
"version": "v2"
}
] | 2011-08-25 | [
[
"Bertolami",
"O.",
""
],
[
"Páramos",
"J.",
""
]
] | We consider the feasibility of using the Galileo Navigation Satellite System to constrain possible extensions or modifications to General Relativity, by assessing the impact of the related additions to the Newtonian potential and comparing with the available observables: the relative frequency shift and the time delay ... |
2311.16869 | Ayan Banerjee | Takol Tangphati, Dhruba Jyoti Gogoi, Anirudh Pradhan and Ayan Banerjee | Investigating Stable Quark Stars in Rastall-Rainbow Gravity and Their
Compatibility with Gravitational Wave Observations | Accepted for publication in Journal of High Energy Astrophysics, 12
pages, 7 figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a stable model for quark stars in Rastall-Rainbow (R-R) gravity.
The structure of this configuration is obtained by utilizing an interacting
quark matter equation of state. The R-R gravity theory is developed as a
combination of two distinct theories, namely, the Rastall theory and the
gravity's rainbow fo... | [
{
"created": "Tue, 28 Nov 2023 15:17:57 GMT",
"version": "v1"
},
{
"created": "Tue, 5 Mar 2024 17:49:42 GMT",
"version": "v2"
}
] | 2024-03-06 | [
[
"Tangphati",
"Takol",
""
],
[
"Gogoi",
"Dhruba Jyoti",
""
],
[
"Pradhan",
"Anirudh",
""
],
[
"Banerjee",
"Ayan",
""
]
] | We present a stable model for quark stars in Rastall-Rainbow (R-R) gravity. The structure of this configuration is obtained by utilizing an interacting quark matter equation of state. The R-R gravity theory is developed as a combination of two distinct theories, namely, the Rastall theory and the gravity's rainbow form... |
2111.15336 | Long Huang | Long Huang, Xiao feng Yang and Xiang Liu | Observational constraint on Dark Energy from Quantum Uncertainty | null | 2021;Chinese Physics C | 10.1088/1674-1137/ac2946 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We explore the theoretical possibility that dark energy density is derived
from the vacuum particle pairs together with the quantum fluctuation of
space-time. By assuming the vacuum particle pairs fall into the horizon
boundary of the cosmos with the expansion of the universe, we can deduce the
uncertainty in the rel... | [
{
"created": "Tue, 30 Nov 2021 12:27:33 GMT",
"version": "v1"
},
{
"created": "Fri, 21 Jul 2023 02:41:26 GMT",
"version": "v2"
}
] | 2023-07-24 | [
[
"Huang",
"Long",
""
],
[
"Yang",
"Xiao feng",
""
],
[
"Liu",
"Xiang",
""
]
] | We explore the theoretical possibility that dark energy density is derived from the vacuum particle pairs together with the quantum fluctuation of space-time. By assuming the vacuum particle pairs fall into the horizon boundary of the cosmos with the expansion of the universe, we can deduce the uncertainty in the relat... |
gr-qc/0302028 | Bob Laughlin | R. B. Laughlin (Stanford University) | Emergent Relativity | 12 pages of RevTeX, 9 eps figures, corrected typos | Int.J.Mod.Phys. A18 (2003) 831-854 | 10.1142/S0217751X03014071 | p01feb02 | gr-qc | null | A possible resolution of the incompatibility of quantum mechanics and general
relativity is that the relativity principle is emergent. I show that the
central paradox of black holes also occurs at a liquid-vapor critical surface
of a bose condensate but is resolved there by the phenomenon of quantum
criticality. I pr... | [
{
"created": "Sun, 9 Feb 2003 15:24:29 GMT",
"version": "v1"
},
{
"created": "Thu, 27 Feb 2003 01:09:36 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Laughlin",
"R. B.",
"",
"Stanford University"
]
] | A possible resolution of the incompatibility of quantum mechanics and general relativity is that the relativity principle is emergent. I show that the central paradox of black holes also occurs at a liquid-vapor critical surface of a bose condensate but is resolved there by the phenomenon of quantum criticality. I prop... |
1402.2084 | Muxin Han | Muxin Han | Black Hole Entropy in Loop Quantum Gravity, Analytic Continuation, and
Dual Holography | 5 pages, no figures | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A new approach to black hole thermodynamics is proposed in Loop Quantum
Gravity (LQG), by defining a new black hole partition function, followed by
analytic continuations of Barbero-Immirzi parameter to $\gamma\in i\mathbb{R}$
and Chern-Simons level to $k\in i\mathbb{R}$. The analytic continued partition
function has... | [
{
"created": "Mon, 10 Feb 2014 10:12:56 GMT",
"version": "v1"
}
] | 2014-02-11 | [
[
"Han",
"Muxin",
""
]
] | A new approach to black hole thermodynamics is proposed in Loop Quantum Gravity (LQG), by defining a new black hole partition function, followed by analytic continuations of Barbero-Immirzi parameter to $\gamma\in i\mathbb{R}$ and Chern-Simons level to $k\in i\mathbb{R}$. The analytic continued partition function has r... |
1504.07100 | Jesper M{\o}ller Grimstrup | Johannes Aastrup and Jesper M. Grimstrup | Quantum Holonomy Theory | 76 pages, 6 figures | null | 10.1002/prop.201600073 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present quantum holonomy theory, which is a non-perturbative theory of
quantum gravity coupled to fermionic degrees of freedom. The theory is based on
a C*-algebra that involves holonomy-diffeomorphisms on a 3-dimensional manifold
and which encodes the canonical commutation relations of canonical quantum
gravity f... | [
{
"created": "Mon, 27 Apr 2015 14:11:23 GMT",
"version": "v1"
}
] | 2016-11-03 | [
[
"Aastrup",
"Johannes",
""
],
[
"Grimstrup",
"Jesper M.",
""
]
] | We present quantum holonomy theory, which is a non-perturbative theory of quantum gravity coupled to fermionic degrees of freedom. The theory is based on a C*-algebra that involves holonomy-diffeomorphisms on a 3-dimensional manifold and which encodes the canonical commutation relations of canonical quantum gravity for... |
gr-qc/0109016 | Hirotaka Yoshino | Hirotaka Yoshino, Yasusada Nambu, Akira Tomimatsu | Hoop conjecture for colliding black holes : non-time-symmetric initial
data | 15pages, 4 figures | Phys.Rev. D65 (2002) 064034 | 10.1103/PhysRevD.65.064034 | null | gr-qc | null | The hoop conjecture is well confirmed in momentarily static spaces, but it
has not been investigated systematically for the system with relativistic
motion. To confirm the hoop conjecture for non-time-symmetric initial data, we
consider the initial data of two colliding black holes with momentum and search
an apparen... | [
{
"created": "Wed, 5 Sep 2001 13:25:43 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Yoshino",
"Hirotaka",
""
],
[
"Nambu",
"Yasusada",
""
],
[
"Tomimatsu",
"Akira",
""
]
] | The hoop conjecture is well confirmed in momentarily static spaces, but it has not been investigated systematically for the system with relativistic motion. To confirm the hoop conjecture for non-time-symmetric initial data, we consider the initial data of two colliding black holes with momentum and search an apparent ... |
1901.05962 | Pheiroijam Suranjoy Singh | Mahabubur Rahman Mollah, Kangujam Priyokumar Singh, Pheiroijam
Suranjoy Singh | On Bianchi type III Cosmological Model with Quadratic EoS in Lyra
Geometry | 18 pages, 6 figures | Int. J. Geom. Methods Mod. Phys., Vol. 15, No. 11, 1850194 (2018) | 10.1142/S0219887818501943 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The paper deals with the investigation of a homogeneous and anisotropic
space-time described by Bianchi type III metric with perfect fluid in Lyra
geometry setting. Exact solutions of the Einsten's field equations have been
obtained under the assumption of quadratic equation of state (EoS) of the form
p=a(rho)^2-(rho... | [
{
"created": "Thu, 17 Jan 2019 16:30:04 GMT",
"version": "v1"
}
] | 2019-01-23 | [
[
"Mollah",
"Mahabubur Rahman",
""
],
[
"Singh",
"Kangujam Priyokumar",
""
],
[
"Singh",
"Pheiroijam Suranjoy",
""
]
] | The paper deals with the investigation of a homogeneous and anisotropic space-time described by Bianchi type III metric with perfect fluid in Lyra geometry setting. Exact solutions of the Einsten's field equations have been obtained under the assumption of quadratic equation of state (EoS) of the form p=a(rho)^2-(rho),... |
gr-qc/0310053 | Robert L. Jaffe | R. Jackiw | Scalar Field for Breaking Lorentz and Diffeomorphism Invariance | Title changed, text edited for Cala Gonone meeting | null | null | MIT-CTP-3423 | gr-qc hep-th | null | A scalar field can be inserted in Maxwell and/or Einstein theory to effect
symmetry breaking. Consequences of such a modification are discussed. Possible
dynamics for the scalar field are presented.
| [
{
"created": "Thu, 9 Oct 2003 19:59:28 GMT",
"version": "v1"
},
{
"created": "Thu, 9 Oct 2003 20:24:19 GMT",
"version": "v2"
},
{
"created": "Wed, 23 Nov 2005 20:36:16 GMT",
"version": "v3"
}
] | 2007-05-23 | [
[
"Jackiw",
"R.",
""
]
] | A scalar field can be inserted in Maxwell and/or Einstein theory to effect symmetry breaking. Consequences of such a modification are discussed. Possible dynamics for the scalar field are presented. |
2201.01835 | Dario Javier Zamora | D. J. Zamora and C. Tsallis | Thermodynamically consistent entropic-force cosmology | null | null | 10.1016/j.physletb.2022.136967 | null | gr-qc astro-ph.CO cond-mat.stat-mech | http://creativecommons.org/publicdomain/zero/1.0/ | We analyze the thermodynamical consistency of entropic-force cosmological
models. Our analysis is based on a generalized entropy scaling with an
arbitrary power of the Hubble radius. The Bekenstein-Hawking entropy,
proportional to the area, and the nonadditive $S_{\delta=3/2}$-entropy,
proportional to the volume, are... | [
{
"created": "Wed, 5 Jan 2022 21:50:29 GMT",
"version": "v1"
}
] | 2022-02-28 | [
[
"Zamora",
"D. J.",
""
],
[
"Tsallis",
"C.",
""
]
] | We analyze the thermodynamical consistency of entropic-force cosmological models. Our analysis is based on a generalized entropy scaling with an arbitrary power of the Hubble radius. The Bekenstein-Hawking entropy, proportional to the area, and the nonadditive $S_{\delta=3/2}$-entropy, proportional to the volume, are p... |
2201.06371 | Siyu Bian | Siyu Bian, Yi Wang, Zun Wang, Mian Zhu | Obstacles from interstellar matters and distortion in warp drive
superluminal travel scenario | null | null | 10.1140/epjc/s10052-022-10840-w | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We investigate obstacles of superluminal "warp drive" travels from
interactions with interstellar matter and from curvature effects. The effect of
collision of interstellar dust particles and photons with the spacecraft will
all lead to a pressure proportional to the apparent velocity of the spaceship
$v_s$. The forc... | [
{
"created": "Mon, 17 Jan 2022 12:08:54 GMT",
"version": "v1"
},
{
"created": "Mon, 3 Oct 2022 08:49:25 GMT",
"version": "v2"
}
] | 2022-10-19 | [
[
"Bian",
"Siyu",
""
],
[
"Wang",
"Yi",
""
],
[
"Wang",
"Zun",
""
],
[
"Zhu",
"Mian",
""
]
] | We investigate obstacles of superluminal "warp drive" travels from interactions with interstellar matter and from curvature effects. The effect of collision of interstellar dust particles and photons with the spacecraft will all lead to a pressure proportional to the apparent velocity of the spaceship $v_s$. The force ... |
1403.6959 | Huiquan Li | Huiquan Li, Cong Yu, Jiancheng Wang and Zhaoyi Xu | Force-free magnetosphere on near-horizon geometry of near-extreme Kerr
black holes | 12 pages, 0 figures | Phys. Rev. D 92, 023009 (2015) | 10.1103/PhysRevD.92.023009 | null | gr-qc astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study force-free magnetospheres in the Blandford-Znajek process from
rapidly rotating black holes by adopting the near-horizon geometry of
near-extreme Kerr black holes (near-NHEK). It is shown that the Znajek
regularity condition on the horizon can be directly derived from the resulting
stream equation. In terms ... | [
{
"created": "Thu, 27 Mar 2014 09:34:06 GMT",
"version": "v1"
},
{
"created": "Sun, 13 Apr 2014 15:19:04 GMT",
"version": "v2"
},
{
"created": "Wed, 2 Jul 2014 09:19:17 GMT",
"version": "v3"
},
{
"created": "Fri, 3 Apr 2015 01:34:24 GMT",
"version": "v4"
}
] | 2015-07-22 | [
[
"Li",
"Huiquan",
""
],
[
"Yu",
"Cong",
""
],
[
"Wang",
"Jiancheng",
""
],
[
"Xu",
"Zhaoyi",
""
]
] | We study force-free magnetospheres in the Blandford-Znajek process from rapidly rotating black holes by adopting the near-horizon geometry of near-extreme Kerr black holes (near-NHEK). It is shown that the Znajek regularity condition on the horizon can be directly derived from the resulting stream equation. In terms of... |
0909.5631 | Adrian Tanasa | Adrian Tanasa | Algebraic structures in quantum gravity | 19 pages, 5 figues, relation with group field theory investigated;
version accepted for publication in Class. Quant. Grav | Class.Quant.Grav.27:095008,2010 | 10.1088/0264-9381/27/9/095008 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Starting from a recently-introduced algebraic structure on spin foam models,
we define a Hopf algebra by dividing with an appropriate quotient. The
structure, thus defined, naturally allows for a mirror analysis of spin foam
models with quantum field theory, from a combinatorial point of view. A
grafting operator is ... | [
{
"created": "Wed, 30 Sep 2009 15:07:50 GMT",
"version": "v1"
},
{
"created": "Mon, 1 Mar 2010 19:13:19 GMT",
"version": "v2"
}
] | 2010-12-06 | [
[
"Tanasa",
"Adrian",
""
]
] | Starting from a recently-introduced algebraic structure on spin foam models, we define a Hopf algebra by dividing with an appropriate quotient. The structure, thus defined, naturally allows for a mirror analysis of spin foam models with quantum field theory, from a combinatorial point of view. A grafting operator is in... |
0811.3534 | Ma{\l}gorzata Jakimowicz | M. Jakimowicz, J. Tafel | SO(n + 1) Symmetric Solutions of the Einstein Equations in Higher
Dimensions | 11 pages | Class. Quantum Grav., 25 (2008) 175002 | 10.1088/0264-9381/25/17/175002 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A method of solving the Einstein equations with a scalar field is presented.
It is applied to find higher dimensional vacuum metrics invariant under the
group SO(n + 1) acting on n-dimensional spheres.
| [
{
"created": "Fri, 21 Nov 2008 13:16:43 GMT",
"version": "v1"
}
] | 2009-11-13 | [
[
"Jakimowicz",
"M.",
""
],
[
"Tafel",
"J.",
""
]
] | A method of solving the Einstein equations with a scalar field is presented. It is applied to find higher dimensional vacuum metrics invariant under the group SO(n + 1) acting on n-dimensional spheres. |
gr-qc/0202061 | Merab Gogberashvili | M. Gogberashvili | Embedding of the Brane into Six Dimensions | 3 pages, LaTeX, no figures, one citation was eddied | J.Math.Phys. 43 (2002) 4886-4888 | 10.1063/1.1505650 | null | gr-qc astro-ph hep-ph hep-th | null | Embedding of the brane metric into Euclidean (2+4)-space is found. Brane
geometry can be visualized as the surface of the hyper-sphere in six dimensions
which 'radius' is governed by the cosmological constant. Minkowski space in
this picture is lied on the intersection of this surface with the plane formed
by the ext... | [
{
"created": "Sun, 17 Feb 2002 21:30:40 GMT",
"version": "v1"
},
{
"created": "Wed, 20 Feb 2002 13:18:30 GMT",
"version": "v2"
}
] | 2015-06-25 | [
[
"Gogberashvili",
"M.",
""
]
] | Embedding of the brane metric into Euclidean (2+4)-space is found. Brane geometry can be visualized as the surface of the hyper-sphere in six dimensions which 'radius' is governed by the cosmological constant. Minkowski space in this picture is lied on the intersection of this surface with the plane formed by the extra... |
2210.08586 | Giorgio Torrieri | Giorgio Torrieri | The equivalence principle and inertial-gravitational decoherence | Discussion extended and updated, references added. Manuscript
reflects version accepted for publication, EPJ Special Topics | null | null | null | gr-qc hep-th quant-ph | http://creativecommons.org/licenses/by/4.0/ | This work is divided into two parts. The first examines recent proposals for
"witnessing" quantum gravity via entanglement from the point of view of
Bronstein's original objection to a quantization of gravity. Using techniques
from open quantum systems we sketch how unavoidable decoherence from both
inertial and grav... | [
{
"created": "Sun, 16 Oct 2022 17:14:37 GMT",
"version": "v1"
},
{
"created": "Wed, 15 Nov 2023 19:03:26 GMT",
"version": "v2"
}
] | 2023-11-17 | [
[
"Torrieri",
"Giorgio",
""
]
] | This work is divided into two parts. The first examines recent proposals for "witnessing" quantum gravity via entanglement from the point of view of Bronstein's original objection to a quantization of gravity. Using techniques from open quantum systems we sketch how unavoidable decoherence from both inertial and gravit... |
1307.4812 | Caio Macedo | Caio F. B. Macedo, Paolo Pani, Vitor Cardoso, Lu\'is C. B. Crispino | Astrophysical signatures of boson stars: quasinormal modes and inspiral
resonances | 20 pages, 8 figures. v2: minor corrections, version to be published
in Phys. Rev. D. v3: final version | null | 10.1103/PhysRevD.88.064046 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Compact bosonic field configurations, or boson stars, are promising dark
matter candidates which have been invoked as an alternative description for the
supermassive compact objects in active galactic nuclei. Boson stars can be
comparable in size and mass to supermassive black holes and they are hard to
distinguish b... | [
{
"created": "Thu, 18 Jul 2013 01:52:28 GMT",
"version": "v1"
},
{
"created": "Fri, 6 Sep 2013 22:24:18 GMT",
"version": "v2"
},
{
"created": "Thu, 19 Sep 2013 20:48:14 GMT",
"version": "v3"
}
] | 2013-09-26 | [
[
"Macedo",
"Caio F. B.",
""
],
[
"Pani",
"Paolo",
""
],
[
"Cardoso",
"Vitor",
""
],
[
"Crispino",
"Luís C. B.",
""
]
] | Compact bosonic field configurations, or boson stars, are promising dark matter candidates which have been invoked as an alternative description for the supermassive compact objects in active galactic nuclei. Boson stars can be comparable in size and mass to supermassive black holes and they are hard to distinguish by ... |
gr-qc/0204005 | S. Q. Wu | Wu Shuang -Qing and Cai Xu | Hawking Radiation of Weyl Neutrinos in a Rectilinearly Non-uniformly
Accelerating Kinnersley Black Hole | 9 pages, no figure, Latex 2.09, accepted for Chinese Physics Vol. 11,
No. 7 (2002) | Chin.Phys. 11 (2002) 661-665 | null | null | gr-qc | null | Quantum thermal effect of Weyl neutrinos in a rectilinearly non-uniformly
accelerating Kinnersley black hole is investigated by using the generalized
tortoise coordinate transformation. The equation that determines the location,
the Hawking temperature of the event horizon and the thermal radiation spectrum
of neutri... | [
{
"created": "Tue, 2 Apr 2002 00:25:17 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"-Qing",
"Wu Shuang",
""
],
[
"Xu",
"Cai",
""
]
] | Quantum thermal effect of Weyl neutrinos in a rectilinearly non-uniformly accelerating Kinnersley black hole is investigated by using the generalized tortoise coordinate transformation. The equation that determines the location, the Hawking temperature of the event horizon and the thermal radiation spectrum of neutrino... |
1105.1334 | Frank Hellmann | Frank Hellmann | On the Expansions in Spin Foam Cosmology | 17 pages, 4 figures, published version | Phys. Rev. D 84, 103516 (2011) | 10.1103/PhysRevD.84.103516 | null | gr-qc | http://creativecommons.org/licenses/by/3.0/ | We discuss the expansions used in spin foam cosmology. We point out that
already at the one vertex level arbitrarily complicated amplitudes contribute,
and discuss the geometric asymptotics of the five simplest ones. We discuss
what type of consistency conditions would be required to control the expansion.
We show th... | [
{
"created": "Fri, 6 May 2011 17:38:40 GMT",
"version": "v1"
},
{
"created": "Tue, 31 Jan 2012 10:20:31 GMT",
"version": "v2"
}
] | 2012-02-01 | [
[
"Hellmann",
"Frank",
""
]
] | We discuss the expansions used in spin foam cosmology. We point out that already at the one vertex level arbitrarily complicated amplitudes contribute, and discuss the geometric asymptotics of the five simplest ones. We discuss what type of consistency conditions would be required to control the expansion. We show that... |
1712.08772 | Chris Van Den Broeck | Jeroen Meidam, Ka Wa Tsang, Janna Goldstein, Michalis Agathos,
Archisman Ghosh, Carl-Johan Haster, Vivien Raymond, Anuradha Samajdar,
Patricia Schmidt, Rory Smith, Kent Blackburn, Walter Del Pozzo, Scott E.
Field, Tjonnie Li, Michael P\"urrer, Chris Van Den Broeck, John Veitch,
Salvatore Vitale | Parameterized tests of the strong-field dynamics of general relativity
using gravitational wave signals from coalescing binary black holes: Fast
likelihood calculations and sensitivity of the method | 19 pages, many figures. Matches PRD version | Phys. Rev. D 97, 044033 (2018) | 10.1103/PhysRevD.97.044033 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Thanks to the recent discoveries of gravitational wave signals from binary
black hole mergers by Advanced Laser Interferometer Gravitational Wave
Observatory and Advanced Virgo, the genuinely strong-field dynamics of
spacetime can now be probed, allowing for stringent tests of general relativity
(GR). One set of test... | [
{
"created": "Sat, 23 Dec 2017 13:17:14 GMT",
"version": "v1"
},
{
"created": "Tue, 27 Feb 2018 12:52:33 GMT",
"version": "v2"
}
] | 2018-02-28 | [
[
"Meidam",
"Jeroen",
""
],
[
"Tsang",
"Ka Wa",
""
],
[
"Goldstein",
"Janna",
""
],
[
"Agathos",
"Michalis",
""
],
[
"Ghosh",
"Archisman",
""
],
[
"Haster",
"Carl-Johan",
""
],
[
"Raymond",
"Vivien",
""
],
... | Thanks to the recent discoveries of gravitational wave signals from binary black hole mergers by Advanced Laser Interferometer Gravitational Wave Observatory and Advanced Virgo, the genuinely strong-field dynamics of spacetime can now be probed, allowing for stringent tests of general relativity (GR). One set of tests ... |
1704.03454 | Sudipto Roy | Sudipto Roy and Soumyadip Chowdhury | A Study of the Time Evolution of Brans-Dicke Parameter and its Role in
Cosmic Expansion | 9 pages in the present version and 1 table. This version has the same
theoretical content as the previous version but with a better mathematical
analysis and explanation regarding the time variation of the Brans-Dicke
Parameter. 3 more equations have been added. A section, called 'Results', has
been added. More... | International Journal of Contemporary Research and Review, Vol. 8,
Issue 6, Page nos: MT 20180-20189 (2017) | 10.15520/ijcrr/2017/8/06/208 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The dependence of Brans-Dicke (BD) parameter upon the scalar field, for
different cosmological era of the expanding universe, has been explored. The
time dependence of the scalar field has been determined and thereby the
explicit time dependence of the BD parameter has been obtained. Experimental
observations regardi... | [
{
"created": "Tue, 11 Apr 2017 02:03:53 GMT",
"version": "v1"
},
{
"created": "Fri, 21 Apr 2017 03:47:06 GMT",
"version": "v2"
},
{
"created": "Sun, 30 Apr 2017 07:28:52 GMT",
"version": "v3"
}
] | 2017-06-23 | [
[
"Roy",
"Sudipto",
""
],
[
"Chowdhury",
"Soumyadip",
""
]
] | The dependence of Brans-Dicke (BD) parameter upon the scalar field, for different cosmological era of the expanding universe, has been explored. The time dependence of the scalar field has been determined and thereby the explicit time dependence of the BD parameter has been obtained. Experimental observations regarding... |
gr-qc/0605134 | Dr. Bikash Chandra Paul | S. Mukherjee, B. C. Paul, N. K. Dadhich, S. D. Maharaj and A. Beesham | Emergent Universe with Exotic Matter | 11 pages, no fig | Class.Quant.Grav. 23 (2006) 6927-6934 | 10.1088/0264-9381/23/23/020 | null | gr-qc | null | A general framework for an emergent universe scenario has been given which
makes use of an equation of state. The general features of the model have also
been studied and possible primordial composition of the universe have been
suggested.
| [
{
"created": "Fri, 26 May 2006 12:05:03 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Mukherjee",
"S.",
""
],
[
"Paul",
"B. C.",
""
],
[
"Dadhich",
"N. K.",
""
],
[
"Maharaj",
"S. D.",
""
],
[
"Beesham",
"A.",
""
]
] | A general framework for an emergent universe scenario has been given which makes use of an equation of state. The general features of the model have also been studied and possible primordial composition of the universe have been suggested. |
1901.05591 | Qing-Guo Huang | Yun Fang and Qing-Guo Huang | Secular evolution of compact binaries revolving around a spinning
massive black hole | 5 pages, 2 figures | Phys. Rev. D 99, 103005 (2019) | 10.1103/PhysRevD.99.103005 | null | gr-qc astro-ph.CO hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The leading order effect of the spin of a distant supermassive black hole
(SMBH) on the orbit of compact binary revolving around it appears at the 1.5
post Newtonian (PN) expansion through coupling with the inner and outer orbital
angular momenta, and makes an oscillating characteristic contribution to the
secular ev... | [
{
"created": "Thu, 17 Jan 2019 02:26:37 GMT",
"version": "v1"
}
] | 2019-05-22 | [
[
"Fang",
"Yun",
""
],
[
"Huang",
"Qing-Guo",
""
]
] | The leading order effect of the spin of a distant supermassive black hole (SMBH) on the orbit of compact binary revolving around it appears at the 1.5 post Newtonian (PN) expansion through coupling with the inner and outer orbital angular momenta, and makes an oscillating characteristic contribution to the secular evol... |
1507.01806 | Jun-Qi Guo | Jun-Qi Guo and Pankaj S. Joshi | Interior dynamics of neutral and charged black holes | 38 pages, 23 figures. Minor change | Phys. Rev. D 92, 064013 (2015) | 10.1103/PhysRevD.92.064013 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we explore the interior dynamics of neutral and charged black
holes. Scalar collapses in flat, Schwarzschild, and Reissner-Nordstrom
geometries are simulated. We examine the dynamics in the vicinities of the
central singularity of a Schwarzschild black hole and of the inner horizon of a
Reissner-Nordst... | [
{
"created": "Tue, 7 Jul 2015 13:47:38 GMT",
"version": "v1"
},
{
"created": "Sun, 13 Sep 2015 11:18:34 GMT",
"version": "v2"
},
{
"created": "Wed, 7 Oct 2015 01:08:50 GMT",
"version": "v3"
},
{
"created": "Tue, 1 Dec 2015 08:51:08 GMT",
"version": "v4"
}
] | 2015-12-02 | [
[
"Guo",
"Jun-Qi",
""
],
[
"Joshi",
"Pankaj S.",
""
]
] | In this paper, we explore the interior dynamics of neutral and charged black holes. Scalar collapses in flat, Schwarzschild, and Reissner-Nordstrom geometries are simulated. We examine the dynamics in the vicinities of the central singularity of a Schwarzschild black hole and of the inner horizon of a Reissner-Nordstro... |
gr-qc/9801070 | Luis Lehner | N. Bishop, R. Isaacson, R. Gomez, L. Lehner, B. Szilagyi and J.
Winicour | Cauchy-characteristic matching | 27 pages. To appear in "On the Black Hole Trail" eds. Bala Iyer and
Biplab Bhawal (Kluwer) | null | null | null | gr-qc | null | This paper gives a detailed pedagogic presentation of the central concepts
underlying a new algorithm for the numerical solution of Einstein's equations
for gravitation. This approach incorporates the best features of the two
leading approaches to computational gravitation, carving up spacetime via
Cauchy hypersurfac... | [
{
"created": "Tue, 20 Jan 1998 21:23:13 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Bishop",
"N.",
""
],
[
"Isaacson",
"R.",
""
],
[
"Gomez",
"R.",
""
],
[
"Lehner",
"L.",
""
],
[
"Szilagyi",
"B.",
""
],
[
"Winicour",
"J.",
""
]
] | This paper gives a detailed pedagogic presentation of the central concepts underlying a new algorithm for the numerical solution of Einstein's equations for gravitation. This approach incorporates the best features of the two leading approaches to computational gravitation, carving up spacetime via Cauchy hypersurfaces... |
gr-qc/9504013 | Giuseppe Pollifrone-.+39-6-49914350- | G. Esposito, G. Gionti, A. Yu. Kamenshchik, I. V. Mishakov and G.
Pollifrone | Rarita-Schwinger Potentials in Quantum Cosmology | 23 pages, plain TeX, no figures. The paper has been completely
revised | null | null | Rome1-1097/95, DSF 94/28 | gr-qc | null | This paper studies the two-spinor form of the Rarita-Schwinger potentials
subject to local boundary conditions compatible with local supersymmetry. The
massless Rarita-Schwinger field equations are studied in four-real-dimensional
Riemannian backgrounds with boundary. Gauge transformations on the potentials
are shown... | [
{
"created": "Mon, 10 Apr 1995 14:07:13 GMT",
"version": "v1"
},
{
"created": "Mon, 3 Jun 1996 16:18:09 GMT",
"version": "v2"
}
] | 2008-02-03 | [
[
"Esposito",
"G.",
""
],
[
"Gionti",
"G.",
""
],
[
"Kamenshchik",
"A. Yu.",
""
],
[
"Mishakov",
"I. V.",
""
],
[
"Pollifrone",
"G.",
""
]
] | This paper studies the two-spinor form of the Rarita-Schwinger potentials subject to local boundary conditions compatible with local supersymmetry. The massless Rarita-Schwinger field equations are studied in four-real-dimensional Riemannian backgrounds with boundary. Gauge transformations on the potentials are shown t... |
2402.16373 | Min Zhao | Min Zhao, Meirong Tang, Zhaoyi Xu | Testing The Weak Cosmic Censorship Conjecture in Short Haired Black
Holes | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Weak Cosmic Censorship Conjecture is a hypothesis regarding the
properties of event horizons and singularities during the formation of black
holes, stating that singularities are always encompassed by the event
horizons(TEH) of black holes, thus preventing naked singularities from
affecting the causal structure o... | [
{
"created": "Mon, 26 Feb 2024 07:52:10 GMT",
"version": "v1"
}
] | 2024-02-27 | [
[
"Zhao",
"Min",
""
],
[
"Tang",
"Meirong",
""
],
[
"Xu",
"Zhaoyi",
""
]
] | The Weak Cosmic Censorship Conjecture is a hypothesis regarding the properties of event horizons and singularities during the formation of black holes, stating that singularities are always encompassed by the event horizons(TEH) of black holes, thus preventing naked singularities from affecting the causal structure of ... |
2002.00963 | Carlos A. R. Herdeiro | Jose Luis Bl\'azquez-Salcedo, Carlos A. R. Herdeiro, Jutta Kunz,
Alexandre M. Pombo, Eugen Radu | Einstein-Maxwell-scalar black holes: the hot, the cold and the bald | 12 pages, 6 figures | Phys. Lett. B 806 (2020) 135493 | 10.1016/j.physletb.2020.135493 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The phenomenon of spontaneous scalarisation of charged black holes (BHs) has
recently motivated studies of various Einstein-Maxwell-scalar models. Within
these models, different classes of BH solutions are possible, depending on the
non-minimal coupling function $f(\phi)$, between the scalar field and the
Maxwell inv... | [
{
"created": "Mon, 3 Feb 2020 19:00:01 GMT",
"version": "v1"
}
] | 2020-05-25 | [
[
"Blázquez-Salcedo",
"Jose Luis",
""
],
[
"Herdeiro",
"Carlos A. R.",
""
],
[
"Kunz",
"Jutta",
""
],
[
"Pombo",
"Alexandre M.",
""
],
[
"Radu",
"Eugen",
""
]
] | The phenomenon of spontaneous scalarisation of charged black holes (BHs) has recently motivated studies of various Einstein-Maxwell-scalar models. Within these models, different classes of BH solutions are possible, depending on the non-minimal coupling function $f(\phi)$, between the scalar field and the Maxwell invar... |
2102.00507 | Ludwin Fabian Casta\~neda Godoy | L.F Casta\~neda-Godoy, J.Ospino and L.A. N\'u\~nez | Radiating jump conditions in General Relativity | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a unified description of spherical discontinuity surfaces in
General Relativity based on two parameters: mass function and surface
permeability. The surfaces considered are: \textit{Impulsive fronts}, massive
permeable layer; \textit{Surface layers}, massive impermeable layer;
\textit{Shock fronts}, massle... | [
{
"created": "Sun, 31 Jan 2021 18:19:43 GMT",
"version": "v1"
}
] | 2021-02-02 | [
[
"Castañeda-Godoy",
"L. F",
""
],
[
"Ospino",
"J.",
""
],
[
"Núñez",
"L. A.",
""
]
] | We present a unified description of spherical discontinuity surfaces in General Relativity based on two parameters: mass function and surface permeability. The surfaces considered are: \textit{Impulsive fronts}, massive permeable layer; \textit{Surface layers}, massive impermeable layer; \textit{Shock fronts}, massless... |
0909.0036 | Jonathan Thornburg | Jonathan Thornburg | Adaptive Mesh Refinement for Characteristic Grids | 37 pages, 15 figures (40 eps figure files, 8 of them color; all are
viewable ok in black-and-white), 1 mpeg movie, uses Springer-Verlag svjour3
document class, includes C++ source code. Changes from v1: revised in
response to referee comments: many references added, new figure added to
better explain the algori... | Gen.Rel.Grav.43:1211-1251,2011 | 10.1007/s10714-010-1096-z | null | gr-qc physics.comp-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | I consider techniques for Berger-Oliger adaptive mesh refinement (AMR) when
numerically solving partial differential equations with wave-like solutions,
using characteristic (double-null) grids. Such AMR algorithms are naturally
recursive, and the best-known past Berger-Oliger characteristic AMR algorithm,
that of Pr... | [
{
"created": "Mon, 31 Aug 2009 20:21:27 GMT",
"version": "v1"
},
{
"created": "Wed, 23 Sep 2009 19:47:53 GMT",
"version": "v2"
},
{
"created": "Fri, 14 May 2010 18:17:40 GMT",
"version": "v3"
}
] | 2015-03-13 | [
[
"Thornburg",
"Jonathan",
""
]
] | I consider techniques for Berger-Oliger adaptive mesh refinement (AMR) when numerically solving partial differential equations with wave-like solutions, using characteristic (double-null) grids. Such AMR algorithms are naturally recursive, and the best-known past Berger-Oliger characteristic AMR algorithm, that of Pret... |
2011.10952 | Amin Salehi | Amin. Salehi | Cosmography of chameleon gravity | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The paper discusses a particular model of chameleon gravity where the scalar
field has an exponential as $V=M^{4}\exp(\frac{\alpha\phi}{M_{pl}})$ and an
exponential coupling to the matter density component of the Universe as
$\rho_{m}\exp(\frac{\beta\phi}{M_{pl}})$. We finds the relations between the
four (in princip... | [
{
"created": "Sun, 22 Nov 2020 06:22:41 GMT",
"version": "v1"
}
] | 2020-11-24 | [
[
"Salehi",
"Amin.",
""
]
] | The paper discusses a particular model of chameleon gravity where the scalar field has an exponential as $V=M^{4}\exp(\frac{\alpha\phi}{M_{pl}})$ and an exponential coupling to the matter density component of the Universe as $\rho_{m}\exp(\frac{\beta\phi}{M_{pl}})$. We finds the relations between the four (in principle... |
1508.06849 | Valerio Faraoni | Valerio Faraoni (Bishop's University) | Quasilocal energy in modified gravity | Corrected an error and added a section on Einstein frame. Matches
version published in Class. Quantum Grav | null | 10.1088/0264-9381/33/1/015007 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A new generalization of the Hawking-Hayward quasilocal energy to
scalar-tensor gravity is proposed without assuming symmetries, asymptotic
flatness, or special spacetime metrics. The procedure followed is simple but
powerful and consists of writing the scalar-tensor field equations as effective
Einstein equations and... | [
{
"created": "Thu, 27 Aug 2015 13:22:12 GMT",
"version": "v1"
},
{
"created": "Tue, 9 Feb 2016 17:39:50 GMT",
"version": "v2"
}
] | 2016-02-10 | [
[
"Faraoni",
"Valerio",
"",
"Bishop's University"
]
] | A new generalization of the Hawking-Hayward quasilocal energy to scalar-tensor gravity is proposed without assuming symmetries, asymptotic flatness, or special spacetime metrics. The procedure followed is simple but powerful and consists of writing the scalar-tensor field equations as effective Einstein equations and t... |
1209.5159 | Keiki Saito | Keiki Saito and Akihiro Ishibashi | High frequency limit for gravitational perturbations of cosmological
models in modified gravity theories | 11 pages, no figures | null | 10.1093/ptep/pts061 | KEK-TH-1571 | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In general relativity, it has been shown that the effective gravitational
stress-energy tensor for short-wavelength metric perturbations acts just like
that for a radiation fluid, and thus, in particular, cannot provide any effects
that mimic dark energy. However, it is far from obvious if this property of the
effect... | [
{
"created": "Mon, 24 Sep 2012 06:31:04 GMT",
"version": "v1"
}
] | 2016-06-21 | [
[
"Saito",
"Keiki",
""
],
[
"Ishibashi",
"Akihiro",
""
]
] | In general relativity, it has been shown that the effective gravitational stress-energy tensor for short-wavelength metric perturbations acts just like that for a radiation fluid, and thus, in particular, cannot provide any effects that mimic dark energy. However, it is far from obvious if this property of the effectiv... |
gr-qc/9903101 | Lee Samuel Finn | Lee Samuel Finn, Soumya D. Mohanty and Joseph D. Romano | Detecting an association between Gamma Ray and Gravitational Wave Bursts | 4 pages, submitted to PRL | Phys.Rev.D60:121101,1999 | 10.1103/PhysRevD.60.121101 | null | gr-qc astro-ph | null | If $\gamma$-ray bursts (GRBs) are accompanied by gravitational wave bursts
(GWBs) the correlated output of two gravitational wave detectors evaluated in
the moments just prior to a GRB will differ from that evaluated at times not
associated with a GRB. We can test for this difference independently of any
model of the... | [
{
"created": "Tue, 30 Mar 1999 01:31:50 GMT",
"version": "v1"
}
] | 2010-01-06 | [
[
"Finn",
"Lee Samuel",
""
],
[
"Mohanty",
"Soumya D.",
""
],
[
"Romano",
"Joseph D.",
""
]
] | If $\gamma$-ray bursts (GRBs) are accompanied by gravitational wave bursts (GWBs) the correlated output of two gravitational wave detectors evaluated in the moments just prior to a GRB will differ from that evaluated at times not associated with a GRB. We can test for this difference independently of any model of the G... |
2307.00715 | William Campbell | William M. Campbell, Maxim Goryachev and Michael E. Tobar | The Multi-mode Acoustic Gravitational Wave Experiment: MAGE | null | Sci Rep 13, 10638 (2023) | 10.1038/s41598-023-35670-y | null | gr-qc astro-ph.HE astro-ph.IM hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Multi-mode Acoustic Gravitational wave Experiment (MAGE) is a high
frequency gravitational wave detection experiment. In its first stage, the
experiment features two near-identical quartz bulk acoustic wave resonators
that act as strain antennas with spectral sensitivity as low as $6.6\times
10^{-21} \left[\textr... | [
{
"created": "Mon, 3 Jul 2023 02:38:35 GMT",
"version": "v1"
},
{
"created": "Fri, 24 Nov 2023 01:25:16 GMT",
"version": "v2"
}
] | 2023-11-27 | [
[
"Campbell",
"William M.",
""
],
[
"Goryachev",
"Maxim",
""
],
[
"Tobar",
"Michael E.",
""
]
] | The Multi-mode Acoustic Gravitational wave Experiment (MAGE) is a high frequency gravitational wave detection experiment. In its first stage, the experiment features two near-identical quartz bulk acoustic wave resonators that act as strain antennas with spectral sensitivity as low as $6.6\times 10^{-21} \left[\textrm{... |
2011.13402 | Joshua Bautista | Joshua Bautista and Ian Vega | Chaotic exits from a weakly magnetized Schwarzschild black hole | 28 pages. v2: minor changes to the text in response to comments,
updated references, submitted | null | 10.1088/1361-6382/ac0e19 | null | gr-qc nlin.CD | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A charged particle kicked from an initial circular orbit around a weakly
magnetized Schwarzschild black hole undergoes transient chaotic motion before
either getting captured by the black hole or escaping upstream or downstream
with respect to the direction of the magnetic field. These final states form
basins of att... | [
{
"created": "Thu, 26 Nov 2020 17:34:40 GMT",
"version": "v1"
},
{
"created": "Sun, 10 Jan 2021 06:17:56 GMT",
"version": "v2"
}
] | 2021-06-25 | [
[
"Bautista",
"Joshua",
""
],
[
"Vega",
"Ian",
""
]
] | A charged particle kicked from an initial circular orbit around a weakly magnetized Schwarzschild black hole undergoes transient chaotic motion before either getting captured by the black hole or escaping upstream or downstream with respect to the direction of the magnetic field. These final states form basins of attra... |
1506.06506 | Jan Meichsner | J. Meichsner and M.H. Soffel | Effects on satellite orbits in the gravitational field of an
axisymmetric central body with a mass monopole and arbitrary spin multipole
moments | null | Dynamical Astronomy, 2015, DOI: 10.1007/s10569-015-9626-3 | 10.1007/s10569-015-9626-3 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Perturbations of satellite orbits in the gravitational field of a body with a
mass monopole and arbitrary spin multipole moments are considered for an
axisymmetric and stationary situation. Periodic and secular effects caused by
the central gravitomagnetic field are derived by a first order perturbation
theory. For a... | [
{
"created": "Mon, 22 Jun 2015 08:53:27 GMT",
"version": "v1"
}
] | 2015-06-23 | [
[
"Meichsner",
"J.",
""
],
[
"Soffel",
"M. H.",
""
]
] | Perturbations of satellite orbits in the gravitational field of a body with a mass monopole and arbitrary spin multipole moments are considered for an axisymmetric and stationary situation. Periodic and secular effects caused by the central gravitomagnetic field are derived by a first order perturbation theory. For a c... |
1511.07323 | Neven Bili\'c | Neven Bilic | Randall-Sundrum versus holographic cosmology | 17 pages, 4 figures, revised to match the version to appear in Phys.
Rev. D, mistakes corrected, references updated, results unchanged | Phys. Rev. D 93, 066010 (2016) | 10.1103/PhysRevD.93.066010 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a model of a holographic braneworld universe in which a
cosmological fluid occupies a 3+1 dimensional brane located at the boundary of
the asymptotic AdS$_5$ bulk. We combine the AdS/CFT correspondence and the
second Randall-Sundrum (RSII) model to establish a relationship between the
RSII braneworld cosm... | [
{
"created": "Mon, 23 Nov 2015 17:23:12 GMT",
"version": "v1"
},
{
"created": "Tue, 22 Dec 2015 15:31:06 GMT",
"version": "v2"
},
{
"created": "Fri, 18 Mar 2016 15:04:43 GMT",
"version": "v3"
}
] | 2016-03-30 | [
[
"Bilic",
"Neven",
""
]
] | We consider a model of a holographic braneworld universe in which a cosmological fluid occupies a 3+1 dimensional brane located at the boundary of the asymptotic AdS$_5$ bulk. We combine the AdS/CFT correspondence and the second Randall-Sundrum (RSII) model to establish a relationship between the RSII braneworld cosmol... |
2311.11297 | Mihai Marciu C | Mihai Marciu, Dana Maria Ioan, Mihai Dragomir | Observational constraints for cubic gravity theory based on third order
contractions of the Riemann tensor | null | null | null | null | gr-qc hep-th physics.data-an | http://creativecommons.org/licenses/by/4.0/ | The paper studies different observational features in the case of a specific
cubic gravity theory, based on third order contractions of the Riemann tensor.
Considering viable cosmic chronometers data, baryon acoustic oscillations, and
supernovae, we analyze the viability of such a theoretical model, obtaining
specifi... | [
{
"created": "Sun, 19 Nov 2023 11:06:27 GMT",
"version": "v1"
}
] | 2023-11-21 | [
[
"Marciu",
"Mihai",
""
],
[
"Ioan",
"Dana Maria",
""
],
[
"Dragomir",
"Mihai",
""
]
] | The paper studies different observational features in the case of a specific cubic gravity theory, based on third order contractions of the Riemann tensor. Considering viable cosmic chronometers data, baryon acoustic oscillations, and supernovae, we analyze the viability of such a theoretical model, obtaining specific ... |
2105.01894 | De-Chang Dai | De-Chang Dai, Djordje Minic, Dejan Stojkovic | Interaction of cosmological domain walls with large classical objects,
like planets and satellites, and the flyby anomaly | 12 figures | null | 10.1007/JHEP03(2022)207 | null | gr-qc astro-ph.CO hep-th | http://creativecommons.org/licenses/by/4.0/ | Cosmological domain walls can be formed as a result of symmetry breaking at
any epoch during the evolution of our universe. We study their interaction with
a classical macroscopic object, like Earth or a satellite in Earth's orbit. We
set up an action that includes the interaction term between the massive
classical o... | [
{
"created": "Wed, 5 May 2021 07:05:45 GMT",
"version": "v1"
},
{
"created": "Sat, 21 May 2022 09:44:02 GMT",
"version": "v2"
}
] | 2022-05-24 | [
[
"Dai",
"De-Chang",
""
],
[
"Minic",
"Djordje",
""
],
[
"Stojkovic",
"Dejan",
""
]
] | Cosmological domain walls can be formed as a result of symmetry breaking at any epoch during the evolution of our universe. We study their interaction with a classical macroscopic object, like Earth or a satellite in Earth's orbit. We set up an action that includes the interaction term between the massive classical obj... |
1202.4575 | Sanjay Jhingan | Naresh Dadhich, Sushant G. Ghosh and Sanjay Jhingan | The Lovelock gravity in the critical spacetime dimension | 3 pages, revised version with two minor changes and an author added.
Accepted for publication in Physics Letters B | Phys.Lett. B711 (2012) 196-198 | 10.1016/j.physletb.2012.03.084 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is well known that the vacuum in the Einstein gravity, which is linear in
the Riemann curvature, is trivial in the critical (2+1=3) dimension because
vacuum solution is flat. It turns out that this is true in general for any odd
critical $d=2n+1$ dimension where $n$ is the degree of homogeneous polynomial
in Riema... | [
{
"created": "Tue, 21 Feb 2012 09:42:48 GMT",
"version": "v1"
},
{
"created": "Fri, 30 Mar 2012 11:32:27 GMT",
"version": "v2"
}
] | 2015-06-04 | [
[
"Dadhich",
"Naresh",
""
],
[
"Ghosh",
"Sushant G.",
""
],
[
"Jhingan",
"Sanjay",
""
]
] | It is well known that the vacuum in the Einstein gravity, which is linear in the Riemann curvature, is trivial in the critical (2+1=3) dimension because vacuum solution is flat. It turns out that this is true in general for any odd critical $d=2n+1$ dimension where $n$ is the degree of homogeneous polynomial in Riemann... |
1405.4728 | Christian Boehmer | Christian G. Boehmer, Robert J. Downes | From continuum mechanics to general relativity | 7 pages, this essay received a honorable mention in the 2014 essay
competition of the Gravity Research Foundation | Int. J. Mod. Phys. D 23, 1442015 (2014) | 10.1142/S0218271814420152 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using ideas from continuum mechanics we construct a theory of gravity. We
show that this theory is equivalent to Einstein's theory of general relativity;
it is also a much faster way of reaching general relativity than the
conventional route. Our approach is simple and natural: we form a very general
model and then a... | [
{
"created": "Mon, 19 May 2014 14:00:45 GMT",
"version": "v1"
}
] | 2015-01-28 | [
[
"Boehmer",
"Christian G.",
""
],
[
"Downes",
"Robert J.",
""
]
] | Using ideas from continuum mechanics we construct a theory of gravity. We show that this theory is equivalent to Einstein's theory of general relativity; it is also a much faster way of reaching general relativity than the conventional route. Our approach is simple and natural: we form a very general model and then app... |
1905.01323 | Carlos Conde | Carlos Conde, Cristian Galvis and Eduard Larra\~naga | Properties of the Innermost Stable Circular Orbit of a spinning particle
moving in a rotating Maxwell-dilaton black hole background | null | null | 10.1103/PhysRevD.99.104059 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we investigate the innermost stable circular orbit (ISCO) of a
spinning test particle moving in the rotating Maxwell-dilaton black hole
spacetime. By using the Mathisson-Papapetrou-Dixon equations along with the
Tulczyjew spin-supplementary condition, we find the equations of motion in the
equatorial pl... | [
{
"created": "Fri, 3 May 2019 18:02:04 GMT",
"version": "v1"
}
] | 2019-07-03 | [
[
"Conde",
"Carlos",
""
],
[
"Galvis",
"Cristian",
""
],
[
"Larrañaga",
"Eduard",
""
]
] | In this paper we investigate the innermost stable circular orbit (ISCO) of a spinning test particle moving in the rotating Maxwell-dilaton black hole spacetime. By using the Mathisson-Papapetrou-Dixon equations along with the Tulczyjew spin-supplementary condition, we find the equations of motion in the equatorial plan... |
gr-qc/0510017 | Jan Broekaert | Jan (B.) Broekaert | A "Lorentz-Poincare"-Type Interpretation of Relativistic Gravitation | 5 pages, conference paper, EPS-13, 2005, Bern, Switzerland | Proceedings of EPS-13: Beyond Einstein -- Physics for the 21st
century, (ESA SP-637), (ed.) M. Cruise, (2005) | null | null | gr-qc | null | The nature of 'time', 'space' and 'reality' are to large extent dependent on
our interpretation of Special (SRT) and General Relativity Theory (GRT). In SRT
essentially two distinct interpretations exist; the "geometrical"
interpretation by Einstein based on the Principle of Relativity and the
Invariance of the veloc... | [
{
"created": "Wed, 5 Oct 2005 08:56:36 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Jan",
"",
"",
"B."
],
[
"Broekaert",
"",
""
]
] | The nature of 'time', 'space' and 'reality' are to large extent dependent on our interpretation of Special (SRT) and General Relativity Theory (GRT). In SRT essentially two distinct interpretations exist; the "geometrical" interpretation by Einstein based on the Principle of Relativity and the Invariance of the velocit... |
2212.05082 | Riccardo Della Monica | Riccardo Della Monica, Ivan de Martino, Daniele Vernieri, Mariafelicia
de Laurentis | Testing Horndeski gravity with S2 star orbit | 8 pages, 4 figures, 3 tables, 1 supplementary figure. Accepted for
publication on MNRAS | Monthly Notices of the Royal Astronomical Society, Volume 519,
Issue 2, pp.1981-1988 | 10.1093/mnras/stac3648 | null | gr-qc astro-ph.CO astro-ph.GA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We have explored a completely new and alternative way to restrict the
parameter space of Horndeski theory of gravity. Using its Newtonian limit, it
is possible to test the theory at a regime where, given its complexity and the
small magnitude of the expected effects, it is poorly probed. At Newtonian
level, it gives ... | [
{
"created": "Fri, 9 Dec 2022 19:00:31 GMT",
"version": "v1"
}
] | 2023-06-26 | [
[
"Della Monica",
"Riccardo",
""
],
[
"de Martino",
"Ivan",
""
],
[
"Vernieri",
"Daniele",
""
],
[
"de Laurentis",
"Mariafelicia",
""
]
] | We have explored a completely new and alternative way to restrict the parameter space of Horndeski theory of gravity. Using its Newtonian limit, it is possible to test the theory at a regime where, given its complexity and the small magnitude of the expected effects, it is poorly probed. At Newtonian level, it gives ri... |
1704.02873 | Srijit Bhattacharjee | Srijit Bhattacharjee, Sudipta Sarkar | No-hair theorems for a static and stationary reflecting star | Typos corrected. New references added. Accepted for publication in
Phys. Rev. D | null | 10.1103/PhysRevD.95.084027 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We prove the non existence of massive scalar, vector and tensor hairs outside
the surface of a static and stationary compact reflecting star. Our result is
the extension of the no hair theorem for black holes to horizonless compact
configurations with reflecting boundary condition at the surface. We also
generalize t... | [
{
"created": "Tue, 4 Apr 2017 18:40:37 GMT",
"version": "v1"
},
{
"created": "Sun, 16 Apr 2017 13:31:23 GMT",
"version": "v2"
}
] | 2017-04-26 | [
[
"Bhattacharjee",
"Srijit",
""
],
[
"Sarkar",
"Sudipta",
""
]
] | We prove the non existence of massive scalar, vector and tensor hairs outside the surface of a static and stationary compact reflecting star. Our result is the extension of the no hair theorem for black holes to horizonless compact configurations with reflecting boundary condition at the surface. We also generalize the... |
1004.4995 | Biruniy Fayzullaev | Biruniy Fayzullaev | On the Hamiltonian form of the Einstein equations for gravitational
field | 7 pages | International Journal of Modern Physics A, v.25, No.21, (2010)
4101-4110 | 10.1142/S0217751X10049840 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is shown that Einstein gravitational equations and canonical equations
following from the Dirac-Schwinger Hamiltonian in the Faddeev variables
coincide. For proving of this at first, the Einstein equations has been
rewritten in canonical variables, and after this, the time derivative of the
generalized momenta of ... | [
{
"created": "Wed, 28 Apr 2010 10:53:36 GMT",
"version": "v1"
}
] | 2015-03-17 | [
[
"Fayzullaev",
"Biruniy",
""
]
] | It is shown that Einstein gravitational equations and canonical equations following from the Dirac-Schwinger Hamiltonian in the Faddeev variables coincide. For proving of this at first, the Einstein equations has been rewritten in canonical variables, and after this, the time derivative of the generalized momenta of th... |
2406.16256 | Yu-Xiao Liu | Chun-Chun Zhu, Jing Chen, Wen-Di Guo, and Yu-Xiao Liu | Gravitational Echoes from Braneworlds | 29 pages, 19 figures, 1 table | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Gravitational echoes can be used to probe the structure of spacetime. In this
paper, we investigate the gravitational echoes in different braneworld models
in five-dimensional spacetime. We derive the gravitational perturbation
equations of these models, and obtain the time-dependent evolution equations of
the extra-... | [
{
"created": "Mon, 24 Jun 2024 01:38:49 GMT",
"version": "v1"
}
] | 2024-06-25 | [
[
"Zhu",
"Chun-Chun",
""
],
[
"Chen",
"Jing",
""
],
[
"Guo",
"Wen-Di",
""
],
[
"Liu",
"Yu-Xiao",
""
]
] | Gravitational echoes can be used to probe the structure of spacetime. In this paper, we investigate the gravitational echoes in different braneworld models in five-dimensional spacetime. We derive the gravitational perturbation equations of these models, and obtain the time-dependent evolution equations of the extra-di... |
1711.04575 | Cosimo Bambi | Cosimo Bambi, Leonardo Modesto, Shiladitya Porey, Leslaw Rachwal | Formation and evaporation of an electrically charged black hole in
conformal gravity | 8 pages, no figures. v2: refereed version | Eur. Phys. J. C (2018) 78: 116 | 10.1140/epjc/s10052-018-5608-4 | null | gr-qc astro-ph.HE hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Extending previous work on the formation and the evaporation of black holes
in conformal gravity, in the present paper we study the gravitational collapse
of a spherically symmetric and electrically charged thin shell of radiation.
The process creates a singularity-free black hole. Assuming that in the
evaporation pr... | [
{
"created": "Mon, 13 Nov 2017 13:32:12 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Feb 2018 10:25:11 GMT",
"version": "v2"
}
] | 2018-09-03 | [
[
"Bambi",
"Cosimo",
""
],
[
"Modesto",
"Leonardo",
""
],
[
"Porey",
"Shiladitya",
""
],
[
"Rachwal",
"Leslaw",
""
]
] | Extending previous work on the formation and the evaporation of black holes in conformal gravity, in the present paper we study the gravitational collapse of a spherically symmetric and electrically charged thin shell of radiation. The process creates a singularity-free black hole. Assuming that in the evaporation proc... |
0912.0363 | Kayoomars Karami | K. Karami, S. Ghaffari | The generalized second law in irreversible thermodynamics for the
interacting dark energy in a non-flat FRW universe enclosed by the apparent
horizon | 10 pages | Phys.Lett.B685:115-119,2010 | 10.1016/j.physletb.2010.01.041 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the validity of the generalized second law in irreversible
thermodynamics in a non-flat FRW universe containing the interacting dark
energy with cold dark matter. The boundary of the universe is assumed to be
enclosed by the dynamical apparent horizon. We show that for the present time,
the generalized... | [
{
"created": "Wed, 2 Dec 2009 08:50:37 GMT",
"version": "v1"
},
{
"created": "Wed, 6 Jan 2010 14:55:43 GMT",
"version": "v2"
}
] | 2010-03-26 | [
[
"Karami",
"K.",
""
],
[
"Ghaffari",
"S.",
""
]
] | We investigate the validity of the generalized second law in irreversible thermodynamics in a non-flat FRW universe containing the interacting dark energy with cold dark matter. The boundary of the universe is assumed to be enclosed by the dynamical apparent horizon. We show that for the present time, the generalized s... |
1805.09431 | Ali \"Ovg\"un Dr. | Ali \"Ovg\"un, Kimet Jusufi, and Izzet Sakalli | Gravitational Lensing Under the Effect of Weyl and Bumblebee Gravities:
Applications of Gauss-Bonnet Theorem | 11 Pages, 1 Figure. Accepted for publication in Annals of Physics | Annals of Physics 399 (2018) 193-203 | 10.1016/j.aop.2018.10.012 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we use the Gauss Bonnet theorem to obtain the deflection angle
by the photons coupled to Weyl tensor in a Schwarzschild black hole and
Schwarzschild-like black hole in bumblebee gravity in the weak limit
approximation. To do so, we first calculate the corresponding optical metrics,
and then we find the... | [
{
"created": "Wed, 23 May 2018 21:13:15 GMT",
"version": "v1"
},
{
"created": "Mon, 15 Oct 2018 14:57:40 GMT",
"version": "v2"
}
] | 2018-10-31 | [
[
"Övgün",
"Ali",
""
],
[
"Jusufi",
"Kimet",
""
],
[
"Sakalli",
"Izzet",
""
]
] | In this paper, we use the Gauss Bonnet theorem to obtain the deflection angle by the photons coupled to Weyl tensor in a Schwarzschild black hole and Schwarzschild-like black hole in bumblebee gravity in the weak limit approximation. To do so, we first calculate the corresponding optical metrics, and then we find the G... |
gr-qc/9708065 | Luis Lehner | Nigel T. Bishop, Roberto G\'omez, Luis Lehner, Manoj Maharaj, Jeffrey
Winicour | High-powered Gravitational News | 24 pages, 4 figures. To appear in Phys. Rev. D | Phys.Rev.D56:6298-6309,1997 | 10.1103/PhysRevD.56.6298 | null | gr-qc | null | We describe the computation of the Bondi news for gravitational radiation. We
have implemented a computer code for this problem. We discuss the theory behind
it as well as the results of validation tests. Our approach uses the
compactified null cone formalism, with the computational domain extending to
future null in... | [
{
"created": "Tue, 26 Aug 1997 15:15:10 GMT",
"version": "v1"
}
] | 2010-11-19 | [
[
"Bishop",
"Nigel T.",
""
],
[
"Gómez",
"Roberto",
""
],
[
"Lehner",
"Luis",
""
],
[
"Maharaj",
"Manoj",
""
],
[
"Winicour",
"Jeffrey",
""
]
] | We describe the computation of the Bondi news for gravitational radiation. We have implemented a computer code for this problem. We discuss the theory behind it as well as the results of validation tests. Our approach uses the compactified null cone formalism, with the computational domain extending to future null infi... |
1005.4132 | Nail Khusnutdinov | Nail R. Khusnutdinov, Arkadii A. Popov, Lilia N. Lipatova | Self-force of a point charge in the space-time of a massive wormhole | 10 pages, 1 figure text corrected | Class.Quant.Grav.27:215012,2010 | 10.1088/0264-9381/27/21/215012 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the self-potential and the self-force for an electrically charged
particle at rest in the massive wormhole space-time. We develop general
approach for the renormalization of electromagnetic field of such particle in
the static space-times and apply it to the space-time of the wormhole with
parameter of th... | [
{
"created": "Sat, 22 May 2010 15:18:58 GMT",
"version": "v1"
},
{
"created": "Thu, 26 Aug 2010 06:12:24 GMT",
"version": "v2"
}
] | 2014-11-21 | [
[
"Khusnutdinov",
"Nail R.",
""
],
[
"Popov",
"Arkadii A.",
""
],
[
"Lipatova",
"Lilia N.",
""
]
] | We consider the self-potential and the self-force for an electrically charged particle at rest in the massive wormhole space-time. We develop general approach for the renormalization of electromagnetic field of such particle in the static space-times and apply it to the space-time of the wormhole with parameter of the ... |
2401.12779 | Renan Magalh\~aes | Renan B. Magalh\~aes, Gabriel P. Ribeiro, Haroldo C. D. Lima Junior,
Gonzalo J. Olmo, Lu\'is C. B. Crispino | Singular space-times with bounded algebraic curvature scalars | 15 pages, 5 figures | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | We show that the absence of unbounded algebraic curvature invariants
constructed from polynomials of the Riemann tensor cannot guarantee the absence
of strong singularities. As a consequence, it is not sufficient to rely solely
on the analysis of such scalars to assess the regularity of a given space-time.
This concl... | [
{
"created": "Tue, 23 Jan 2024 14:05:29 GMT",
"version": "v1"
}
] | 2024-01-24 | [
[
"Magalhães",
"Renan B.",
""
],
[
"Ribeiro",
"Gabriel P.",
""
],
[
"Junior",
"Haroldo C. D. Lima",
""
],
[
"Olmo",
"Gonzalo J.",
""
],
[
"Crispino",
"Luís C. B.",
""
]
] | We show that the absence of unbounded algebraic curvature invariants constructed from polynomials of the Riemann tensor cannot guarantee the absence of strong singularities. As a consequence, it is not sufficient to rely solely on the analysis of such scalars to assess the regularity of a given space-time. This conclus... |
1805.11420 | Roman Sverdlov | Roman Sverdlov | Restoring locality of scalar fields on a causal set by avoiding the use
of d'Alembertians | 11 pages, no figures | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we address the non-locality issue of quantum field theory on a
causal set by rewriting it in such a way that avoids the use of d'Alembertian.
We do that by replacing scalar field over points with scalar field over edges,
where the edges are taken to be very long rather than very short. In
particular, th... | [
{
"created": "Mon, 28 May 2018 16:19:18 GMT",
"version": "v1"
},
{
"created": "Wed, 20 Jun 2018 17:12:03 GMT",
"version": "v2"
},
{
"created": "Tue, 26 Jun 2018 06:52:15 GMT",
"version": "v3"
}
] | 2018-06-27 | [
[
"Sverdlov",
"Roman",
""
]
] | In this paper we address the non-locality issue of quantum field theory on a causal set by rewriting it in such a way that avoids the use of d'Alembertian. We do that by replacing scalar field over points with scalar field over edges, where the edges are taken to be very long rather than very short. In particular, they... |
2108.06950 | Horacio Santana Vieira | M. Abu-Saleem and H. S. Vieira | Some aspects of the five-dimensional Lovelock black hole spacetime:
strong homotopy retract, perihelion precession and quasistationary levels | 14 pages, 4 figures | Annals of Physics 433 (2021) 168583 | 10.1016/j.aop.2021.168583 | null | gr-qc math-ph math.AT math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we explore some mathematical physics aspects of the spherically
symmetric Lovelock black hole in high dimensions. Intended for this aim, we
thoroughly consider the metric corresponding to the five-dimensional Lovelock
black hole spacetime. We construct the strong retractions by the geodesic
equations on ... | [
{
"created": "Mon, 16 Aug 2021 07:54:23 GMT",
"version": "v1"
},
{
"created": "Fri, 2 Sep 2022 19:39:11 GMT",
"version": "v2"
}
] | 2022-09-07 | [
[
"Abu-Saleem",
"M.",
""
],
[
"Vieira",
"H. S.",
""
]
] | In this work we explore some mathematical physics aspects of the spherically symmetric Lovelock black hole in high dimensions. Intended for this aim, we thoroughly consider the metric corresponding to the five-dimensional Lovelock black hole spacetime. We construct the strong retractions by the geodesic equations on th... |
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